Bridge Statistics for Methuen, Massachusetts (MA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs

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Structure Number: A090222V0DOTNBI,  Location: AT MERRIMAC RIVER (Lat: 42.700633,  Lng: -71.209858),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1975,  Status: Temporarily open,  Structure Length: 23.62m (77.49ft),  Average Daily Traffic: 129,908 (year 2016),  Truck Traffic: 9%,  Average Future Daily Traffic: 194,728 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: WATER MERRIMACK RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 69.948,  Lanes on structure: 8,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 40.2m (131.9ft),  Skew: 32 degrees,  Material/Design: Steel continuous,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 5,  Number Of Approach Spans: 1,  Length of Maximum Span: 53.3m (174.9ft),  Curb or Sidewalk Widths: Left: 2.3m (7.5ft),  Right: 2.3m (7.5ft),  Curb-To-Curb Width: 40.2m (131.9ft),  Out-to-Out Width: 43.5m (142.7ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 45.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 27.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 23.40m (76.77ft),  Designated Inspection Frequency: Every 12 months,  Underwater Inspection Frequency: Every 36 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: June 2021,  Underwater Inspection Date: August 2019,  Other Special Inspection Date: June 2021,  Bridge Improvement Cost: $49,273,000,  Roadway Improvement Cost: $4,928,000,  Total Project Cost: $73,910,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: A09029AU5DOTNBI,  Location: .5 MILES SOUTH MERRIMAC R (Lat: 42.690583,  Lng: -71.206389),  Route carried "on" structure: State highway ,  Year Built: 2001,  Status: Open,  Structure Length: 6.76m (22.18ft),  Average Daily Traffic: 13,941 (year 2017),  Truck Traffic: 10%,  Average Future Daily Traffic: 7,581 (year 2032),  Design Load: HS 20,  Features Intersected: I 93,  Facility Carried by Structure: HWY RIVER RD
Minimum Vertical Clearance: 99.00m (324.80ft),  Kilometerpoint: 5.488,  Lanes on structure: 6,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 25.6m (84.0ft),  Skew: 20 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 33.8m (110.9ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 25.6m (84.0ft),  Out-to-Out Width: 28.3m (92.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 67.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 6.80m (22.31ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Bridge Improvement Cost: $2,501,000,  Roadway Improvement Cost: $251,000,  Total Project Cost: $3,752,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: A090302XMDOTNBI,  Location: AT I-495 (Lat: 42.649558,  Lng: -71.216886),  Route carried "on" structure: Interstate 495,  Year Built: 1961,  Year Reconstructed: 1987,  Status: Open,  Structure Length: 3.93m (12.89ft),  Average Daily Traffic: 61,024 (year 2017),  Truck Traffic: 10%,  Average Future Daily Traffic: 168,669 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: HWY HAGGETTS POND RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 153.881,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 15.2m (49.9ft),  Out-to-Out Width: 17.4m (57.1ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 64.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 40.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $3,394,000,  Roadway Improvement Cost: $340,000,  Total Project Cost: $5,092,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: A090302XNDOTNBI,  Location: AT I-495 (Lat: 42.649111,  Lng: -71.215917),  Route carried "on" structure: Interstate 495,  Year Built: 1961,  Year Reconstructed: 1987,  Status: Open,  Structure Length: 3.93m (12.89ft),  Average Daily Traffic: 60,500 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 168,669 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: HWY HAGGETTS POND RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 153.881,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.2m (53.1ft),  Curb-To-Curb Width: 15.2m (49.9ft),  Out-to-Out Width: 17.4m (57.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 47.2 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 30.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Bridge Improvement Cost: $2,734,000,  Roadway Improvement Cost: $274,000,  Total Project Cost: $4,102,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M170012YLDOTNBI,  Location: .9 MI S ST213 (Lat: 42.721597,  Lng: -71.181875),  Route carried "on" structure: State highway 28,  Year Built: 1850,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 11,300 (year 2017),  Truck Traffic: 6%,  Average Future Daily Traffic: 37,903 (year 2032),  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 240.338,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 14.3m (46.9ft),  Skew: 1 degrees,  Material/Design: Masonry,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  Curb or Sidewalk Widths: Left: 2.4m (7.9ft),  Right: 2.4m (7.9ft),  Curb-To-Curb Width: 14.3m (46.9ft),  Out-to-Out Width: 20.1m (65.9ft)

Condition: Superstructure: Satisfactory,  Substructure: Fair,  Channel: Good,  Inventory Rating: 49.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.90m (2.95ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 36 months,  Inspection Date: January 2021,  Underwater Inspection Date: May 2019,  Bridge Improvement Cost: $711,000,  Roadway Improvement Cost: $72,000,  Total Project Cost: $1,067,000 ( Estimate for 2022)

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Structure Number: M170022YMDOTNBI,  Location: .6 MI S ST213 (Lat: 42.724692,  Lng: -71.184367),  Route carried "on" structure: State highway 28,  Year Built: 1912,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 22,000 (year 2018),  Truck Traffic: 8%,  Average Future Daily Traffic: 33,165 (year 2031),  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 240.740,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Material/Design: Concrete,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 5.5m (18.0ft),  Curb or Sidewalk Widths: Left: 2.4m (7.9ft),  Right: 2.4m (7.9ft),  Curb-To-Curb Width: 15.2m (49.9ft),  Out-to-Out Width: 21.3m (69.9ft)

Condition: Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 77.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.50m (8.20ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 36 months,  Inspection Date: August 2020,  Underwater Inspection Date: July 2019,  Bridge Improvement Cost: $2,092,000,  Roadway Improvement Cost: $210,000,  Total Project Cost: $3,139,000 ( Estimate for 2022)

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Structure Number: M170032Q7MUNNBI,  Location: .16 KM W ST 28 (Lat: 42.727256,  Lng: -71.188300),  Route carried "on" structure: City street ,  Year Built: 1869,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 5,500 (year 2018),  Truck Traffic: 11%,  Average Future Daily Traffic: 18,162 (year 2031),  Features Intersected: WATER SPICKET RIVER,  Facility Carried by Structure: HWY OSGOOD ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.290,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 2 degrees,  Material/Design: Masonry,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.8m (32.2ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 13.8m (45.3ft)

Condition: Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 1.00m (3.28ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 36 months,  Inspection Date: August 2020,  Underwater Inspection Date: August 2020,  Bridge Improvement Cost: $576,000,  Roadway Improvement Cost: $58,000,  Total Project Cost: $865,000 ( Estimate for 2022)

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Structure Number: M170052Q8MUNNBI,  Location: JUST WEST ST 28 BROADWAY (Lat: 42.721467,  Lng: -71.186353),  Route carried "on" structure: City street ,  Year Built: 1936,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 11,900 (year 2021),  Truck Traffic: 2%,  Average Future Daily Traffic: 6,791 (year 2032),  Features Intersected: TR METHUEN RAIL TRAIL,  Facility Carried by Structure: HWY OAKLAND AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.481,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.6m (31.5ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 9.4m (30.8ft),  Out-to-Out Width: 13.7m (44.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 27.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 21.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 1.10m (3.61ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Bridge Improvement Cost: $592,000,  Roadway Improvement Cost: $60,000,  Total Project Cost: $889,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: M1700632HDOT634,  Location: .32 KM W ST28 (Lat: 42.726361,  Lng: -71.190972),  Route carried "on" structure: State highway 113,  Year Built: 1983,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 28,000 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 24,163 (year 2032),  Design Load: HS 20,  Features Intersected: TR METHUEN RAILTRAIL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 46.712,  Lanes on structure: 5,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 23 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.1m (43.0ft),  Curb or Sidewalk Widths: Left: 1.7m (5.6ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 31.1m (102.0ft),  Out-to-Out Width: 49.5m (162.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 52.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.40m (4.59ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,723,000,  Roadway Improvement Cost: $273,000,  Total Project Cost: $4,085,000 ( Estimate for 2022),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170072UPDOTNBI,  Location: AT MERRIMAC RIVER (Lat: 42.702194,  Lng: -71.210106),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1975,  Status: Open,  Structure Length: 9.51m (31.20ft),  Average Daily Traffic: 133,000 (year 2018),  Truck Traffic: 12%,  Average Future Daily Traffic: 207,591 (year 2032),  Design Load: HS 20,  Features Intersected: HWY RIVERSIDE DR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 70.211,  Lanes on structure: 8,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 40.2m (131.9ft),  Skew: 22 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 25.3m (83.0ft),  Curb-To-Curb Width: 40.2m (131.9ft),  Out-to-Out Width: 43.5m (142.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 62.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 9.60m (31.50ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Bridge Improvement Cost: $3,281,000,  Roadway Improvement Cost: $329,000,  Total Project Cost: $4,922,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M17012AVTDOTNBI,  Location: .1 MI W. ST 28 (Lat: 42.727361,  Lng: -71.190339),  Route carried "on" structure: State highway 113,  Year Built: 2003,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 12,025 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 19,504 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 46.557,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 10.9m (35.8ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 0.0m,  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 10.9m (35.8ft),  Out-to-Out Width: 15.8m (51.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Inventory Rating: 61.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 1.30m (4.27ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $307,000,  Roadway Improvement Cost: $31,000,  Total Project Cost: $461,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M17013AFGDOTNBI,  Location: .1M WEST OF ST 28 (Lat: 42.727672,  Lng: -71.190150),  Route carried "on" structure: State highway 113,  Year Built: 2003,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 12,025 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 19,504 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 46.559,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 10.9m (35.8ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 0.0m,  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 10.9m (35.8ft),  Out-to-Out Width: 15.8m (51.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Inventory Rating: 61.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 1.30m (4.27ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Bridge Improvement Cost: $307,000,  Roadway Improvement Cost: $31,000,  Total Project Cost: $461,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M1701631HDOTNBI,  Location: 1.3 MI E ST28 (Lat: 42.742481,  Lng: -71.168883),  Route carried "on" structure: State highway ,  Year Built: 1961,  Status: Open,  Structure Length: 5.94m (19.49ft),  Average Daily Traffic: 25,700 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 33,576 (year 2031),  Design Load: H 20,  Features Intersected: ST213,  Facility Carried by Structure: HWY HOWE ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.032,  Lanes on structure: 3,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 19.8m (65.0ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 14.9m (48.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 68.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 6.00m (19.69ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $3,512,000,  Roadway Improvement Cost: $352,000,  Total Project Cost: $5,269,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M1701931JDOTNBI,  Location: .6 MI N MERRIMAC RIVER (Lat: 42.710336,  Lng: -71.211069),  Route carried "on" structure: State highway ,  Year Built: 1959,  Year Reconstructed: 1990,  Status: Open,  Structure Length: 12.74m (41.80ft),  Average Daily Traffic: 3,750 (year 2018),  Truck Traffic: 3%,  Average Future Daily Traffic: 5,685 (year 2031),  Design Load: H 20,  Features Intersected: I 93,  Facility Carried by Structure: HWY FOREST ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.816,  Lanes on structure: 2,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 11.2m (36.7ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 33.5m (109.9ft),  Curb or Sidewalk Widths: Left: 1.9m (6.2ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 11.2m (36.7ft),  Out-to-Out Width: 13.8m (45.3ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 66.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 12.80m (41.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2020,  Bridge Improvement Cost: $8,206,000,  Roadway Improvement Cost: $821,000,  Total Project Cost: $12,310,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M170202UTDOTNBI,  Location: 1.8 MI N MERRIMAC RIVER (Lat: 42.728406,  Lng: -71.205106),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1974,  Status: Open,  Structure Length: 3.75m (12.30ft),  Average Daily Traffic: 114,140 (year 2017),  Truck Traffic: 7%,  Average Future Daily Traffic: 374,294 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: HWY PELHAM ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 73.334,  Lanes on structure: 8,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 61.9m (203.1ft),  Skew: 30 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 17.1m (56.1ft),  Curb or Sidewalk Widths: Left: 0.8m (2.6ft),  Right: 0.8m (2.6ft),  Curb-To-Curb Width: 61.9m (203.1ft),  Out-to-Out Width: 65.0m (213.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 74.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 45.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.80m (12.47ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $9,703,000,  Roadway Improvement Cost: $971,000,  Total Project Cost: $14,555,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170212UUDOTNBI,  Location: 2 MI N MERRIMAC RIVER (Lat: 42.731914,  Lng: -71.203678),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1974,  Status: Open,  Structure Length: 3.41m (11.19ft),  Average Daily Traffic: 120,514 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 136,294 (year 2031),  Design Load: HS 20,  Features Intersected: ST213 EB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 73.563,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 42.7m (140.1ft),  Skew: 30 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.8m (42.0ft),  Curb or Sidewalk Widths: Left: 0.8m (2.6ft),  Right: 0.8m (2.6ft),  Curb-To-Curb Width: 42.7m (140.1ft),  Out-to-Out Width: 45.1m (148.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 49.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.50m (11.48ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $6,201,000,  Roadway Improvement Cost: $621,000,  Total Project Cost: $9,302,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M17022AQ7DOTNBI,  Location: .6 MILE E OF I 93 (Lat: 42.732681,  Lng: -71.191292),  Route carried "on" structure: State highway 28,  Year Built: 2011,  Status: Open,  Structure Length: 5.04m (16.54ft),  Average Daily Traffic: 38,147 (year 2019),  Truck Traffic: 3%,  Average Future Daily Traffic: 51,801 (year 2032),  Design Load: HS 25 or greater,  Features Intersected: ST213
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 21.0m (68.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 25.2m (82.7ft),  Curb or Sidewalk Widths: Left: 1.6m (5.2ft),  Right: 0.0m,  Curb-To-Curb Width: 21.0m (68.9ft),  Out-to-Out Width: 23.3m (76.4ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 66.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.10m (16.73ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $529,000,  Roadway Improvement Cost: $53,000,  Total Project Cost: $794,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Epoxy,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M170232UVDOTNBI,  Location: 2.3 MI N MERRIMAC RIVER (Lat: 42.735128,  Lng: -71.203614),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1974,  Status: Open,  Structure Length: 3.99m (13.09ft),  Average Daily Traffic: 120,514 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 136,609 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: ST213 WB
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 73.754,  Lanes on structure: 7,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 41.5m (136.2ft),  Skew: 20 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.9m (48.9ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 41.5m (136.2ft),  Out-to-Out Width: 42.7m (140.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 51.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.00m (13.12ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $6,710,000,  Roadway Improvement Cost: $672,000,  Total Project Cost: $10,066,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170242T0DOTNBI,  Location: OVER SPICKET RIVER (Lat: 42.733750,  Lng: -71.200333),  Route carried "on" structure: State highway 213,  Year Built: 1959,  Year Reconstructed: 2018,  Status: Open,  Structure Length: 1.34m (4.40ft),  Average Daily Traffic: 35,300 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 100,286 (year 2031),  Design Load: HL 93,  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.486,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 13.8m (45.3ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 64.8 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 51.8 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Underwater Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170252RYDOTNBI,  Location: OVER SPICKET RIVER (Lat: 42.731642,  Lng: -71.200089),  Route carried "on" structure: State highway 213,  Year Built: 1959,  Year Reconstructed: 2018,  Status: Open,  Structure Length: 1.28m (4.20ft),  Average Daily Traffic: 35,000 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 100,286 (year 2031),  Design Load: HL 93,  Features Intersected: WATER SPICKET RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.486,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 14.0m (45.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Fair,  Operating Rating: 61.6 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 48.6 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Underwater Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170262RWDOTNBI,  Location: .2 MI W ST28 (Lat: 42.731914,  Lng: -71.195311),  Route carried "on" structure: State highway 213,  Year Built: 1959,  Status: Open,  Structure Length: 0.88m (2.89ft),  Average Daily Traffic: 32,742 (year 2019),  Truck Traffic: 10%,  Average Future Daily Traffic: 59,540 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: TR METHUEN RAIL TRAIL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.884,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Poor,  Superstructure: Poor,  Substructure: Fair,  Operating Rating: 50.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.60m (5.25ft),  Designated Inspection Frequency: Every 12 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: October 2020,  Other Special Inspection Date: October 2021,  Bridge Improvement Cost: $1,149,000,  Roadway Improvement Cost: $115,000,  Total Project Cost: $1,724,000 ( Estimate for 2022),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170262RXDOTNBI,  Location: .2 MI W ST28 (Lat: 42.732050,  Lng: -71.195381),  Route carried "on" structure: State highway 213,  Year Built: 1959,  Status: Open,  Structure Length: 0.88m (2.89ft),  Average Daily Traffic: 33,600 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 61,435 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: TR METHUEN RAIL TRAIL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.884,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 80.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.90m (2.95ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $464,000,  Roadway Improvement Cost: $47,000,  Total Project Cost: $697,000 ( Estimate for 2022),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170272UXDOTNBI,  Location: .1 MI S NEW HAMPSHIRE STA (Lat: 42.742922,  Lng: -71.209219),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1974,  Status: Open,  Structure Length: 3.78m (12.40ft),  Average Daily Traffic: 114,000 (year 2017),  Truck Traffic: 6%,  Average Future Daily Traffic: 146,875 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: HWY HAMPSHIRE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 75.104,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 41.2m (135.2ft),  Skew: 32 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.3m (46.9ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 41.2m (135.2ft),  Out-to-Out Width: 43.3m (142.1ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 45.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.80m (12.47ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $6,464,000,  Roadway Improvement Cost: $647,000,  Total Project Cost: $9,697,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M1702831KDOTNBI,  Location: .1 MILE EAST I 93 (Lat: 42.743000,  Lng: -71.208361),  Route carried "on" structure: State highway ,  Year Built: 1959,  Status: Open,  Structure Length: 1.13m (3.71ft),  Average Daily Traffic: 4,900 (year 2018),  Truck Traffic: 6%,  Average Future Daily Traffic: 6,791 (year 2031),  Design Load: H 20,  Features Intersected: WATER SPICKET RIVER,  Facility Carried by Structure: HWY HAMPSHIRE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.540,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.7m (35.1ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 12.2m (40.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 59.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 47.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.20m (3.94ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 36 months,  Inspection Date: September 2020,  Underwater Inspection Date: June 2021,  Bridge Improvement Cost: $576,000,  Roadway Improvement Cost: $58,000,  Total Project Cost: $865,000 ( Estimate for 2022),  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170292UWDOTNBI,  Location: .32 KM S NEW HAMP STATE L (Lat: 42.740803,  Lng: -71.207403),  Route carried "on" structure: Interstate 93,  Year Built: 1959,  Year Reconstructed: 1972,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 919,000 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 157,930 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: WATER HARRIS BROOK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 74.783,  Lanes on structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 30.5m (100.1ft),  Skew: 20 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.4m (21.0ft),  Curb-To-Curb Width: 42.4m (139.1ft),  Out-to-Out Width: 44.0m (144.4ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 63.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.70m (2.30ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 36 months,  Inspection Date: August 2020,  Underwater Inspection Date: August 2019,  Bridge Improvement Cost: $1,210,000,  Roadway Improvement Cost: $122,000,  Total Project Cost: $1,816,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170312XGDOTNBI,  Location: AT MERRIMAC RIVER (Lat: 42.753639,  Lng: -71.129006),  Route carried "on" structure: Interstate 495,  Year Built: 1963,  Status: Temporarily open,  Structure Length: 5.22m (17.13ft),  Average Daily Traffic: 63,100 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 80,623 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: ST110 /ST113/MERRIMACK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 169.282,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 6 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.1m (69.2ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 14.0m (45.9ft),  Out-to-Out Width: 15.9m (52.2ft)

Condition: Deck: Satisfactory,  Superstructure: Serious,  Substructure: Fair,  Operating Rating: 57.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of corrective action,  Deck Geometry: Meets minimum limits,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.30m (17.39ft),  Designated Inspection Frequency: Every 6 months,  Other Special Inspection Frequency: Every 6 months,  Inspection Date: October 2021,  Other Special Inspection Date: October 2021,  Bridge Improvement Cost: $3,311,000,  Roadway Improvement Cost: $332,000,  Total Project Cost: $4,967,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170312XHDOTNBI,  Location: AT MERRIMAC RIVER (Lat: 42.753222,  Lng: -71.128800),  Route carried "on" structure: Interstate 495,  Year Built: 1963,  Status: Temporarily open,  Structure Length: 5.26m (17.26ft),  Average Daily Traffic: 65,820 (year 2019),  Truck Traffic: 12%,  Average Future Daily Traffic: 80,623 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: ST110 /ST113/MERRIMACK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 169.282,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 14.0m (45.9ft),  Out-to-Out Width: 15.9m (52.2ft)

Condition: Deck: Satisfactory,  Superstructure: Serious,  Substructure: Satisfactory,  Operating Rating: 57.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of corrective action,  Deck Geometry: Meets minimum limits,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.30m (17.39ft),  Designated Inspection Frequency: Every 6 months,  Other Special Inspection Frequency: Every 6 months,  Inspection Date: October 2021,  Other Special Inspection Date: October 2021,  Bridge Improvement Cost: $3,311,000,  Roadway Improvement Cost: $332,000,  Total Project Cost: $4,967,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170322YFDOTNBI,  Location: 1 MI S ST213 (Lat: 42.728178,  Lng: -71.139028),  Route carried "on" structure: State highway 110,  Year Built: 1962,  Status: Open,  Structure Length: 10.79m (35.40ft),  Average Daily Traffic: 46,414 (year 2016),  Truck Traffic: 4%,  Average Future Daily Traffic: 71,858 (year 2031),  Design Load: H 20,  Features Intersected: I 495
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 77.262,  Lanes on structure: 4,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 26.8m (87.9ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 19.0m (62.3ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 52.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 10.80m (35.43ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $8,061,000,  Roadway Improvement Cost: $807,000,  Total Project Cost: $12,092,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170332XEDOTNBI,  Location: 1 MI N ST110 (Lat: 42.741531,  Lng: -71.140958),  Route carried "on" structure: Interstate 495,  Year Built: 1964,  Year Reconstructed: 1992,  Status: Open,  Structure Length: 5.46m (17.91ft),  Average Daily Traffic: 61,657 (year 2020),  Truck Traffic: 11%,  Average Future Daily Traffic: 133,609 (year 2031),  Design Load: H 20,  Features Intersected: ST213
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 167.647,  Lanes on structure: 3,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.8m (51.8ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 15.8m (51.8ft),  Out-to-Out Width: 18.0m (59.1ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Good,  Operating Rating: 62.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.50m (18.04ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $3,889,000,  Roadway Improvement Cost: $389,000,  Total Project Cost: $5,834,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M170332XFDOTNBI,  Location: 1 MI N ST110 (Lat: 42.741839,  Lng: -71.141414),  Route carried "on" structure: Interstate 495,  Year Built: 1964,  Year Reconstructed: 1992,  Status: Open,  Structure Length: 5.52m (18.11ft),  Average Daily Traffic: 50,326 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 133,609 (year 2031),  Design Load: HS 20,  Features Intersected: ST213
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 167.647,  Lanes on structure: 3,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.8m (51.8ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 16.5m (54.1ft),  Curb-To-Curb Width: 15.2m (49.9ft),  Out-to-Out Width: 17.1m (56.1ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 56.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.60m (18.37ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $3,762,000,  Roadway Improvement Cost: $377,000,  Total Project Cost: $5,644,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M1703530RDOTNBI,  Location: .2 MI ST213 (Lat: 42.745294,  Lng: -71.138747),  Route carried "on" structure: State highway 113,  Year Built: 1964,  Status: Temporarily open,  Structure Length: 9.48m (31.10ft),  Average Daily Traffic: 12,341 (year 2016),  Truck Traffic: 5%,  Average Future Daily Traffic: 17,372 (year 2031),  Design Load: H 20,  Features Intersected: I 495
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 51.573,  Lanes on structure: 2,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 33.8m (110.9ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 0.0m,  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 15.2m (49.9ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 50.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 20.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 9.50m (31.17ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $5,673,000,  Roadway Improvement Cost: $568,000,  Total Project Cost: $8,510,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M1703730TDOTNBI,  Location: .2 MI W I495 (Lat: 42.744419,  Lng: -71.145269),  Route carried "on" structure: State highway 113,  Year Built: 1964,  Status: Open,  Structure Length: 7.13m (23.39ft),  Average Daily Traffic: 13,200 (year 2019),  Truck Traffic: 10%,  Average Future Daily Traffic: 35,534 (year 2031),  Design Load: HS 20,  Features Intersected: ST213
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 51.065,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 24.4m (80.1ft),  Curb or Sidewalk Widths: Left: 1.6m (5.2ft),  Right: 0.0m,  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 14.9m (48.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 43.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 25.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 7.20m (23.62ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $4,214,000,  Roadway Improvement Cost: $422,000,  Total Project Cost: $6,322,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: M170382T1DOTNBI,  Location: .6 MI W I495 (Lat: 42.746389,  Lng: -71.156806),  Route carried "on" structure: State highway 213,  Year Built: 1985,  Status: Open,  Structure Length: 5.21m (17.09ft),  Average Daily Traffic: 12,700 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 14,056 (year 2033),  Design Load: HS 20,  Features Intersected: ST213
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.225,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 17.7m (58.1ft),  Skew: 22 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 24.7m (81.0ft),  Curb-To-Curb Width: 17.7m (58.1ft),  Out-to-Out Width: 18.7m (61.4ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 55.1 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 35.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior to present desirable criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Superior to present desirable criteria,  Length Of Structure Improvement: 5.30m (17.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2022,  Bridge Improvement Cost: $3,894,000,  Roadway Improvement Cost: $390,000,  Total Project Cost: $5,842,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: M17040BC4DOTNBI,  Location: .9 MI N MERRIMAC RIVER (Lat: 42.705033,  Lng: -71.210414),  Route carried "on" structure: Interstate 93,  Year Built: 2017,  Status: Open,  Structure Length: 6.05m (19.85ft),  Average Daily Traffic: 112,881 (year 2020),  Truck Traffic: 10%,  Design Load: HL 93,  Features Intersected: ST110 /ST113/LOWELL ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 70.532,  Lanes on structure: 8,  Lanes under structure: 5,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 23.4m (76.8ft),  Skew: 31 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 48.4m (158.8ft),  Out-to-Out Width: 49.9m (163.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Epoxy

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Structure Number: M1701931JDOTNBI,  Location: ENG JUDGE (Lat: 42.700000,  Lng: -71.216667),  Route carried "under" structure: Interstate 93,  Year Built: 1959,  Structure Length: 0. m,  Average Daily Traffic: 40,000 (year 0000),  Features Intersected: I 93 SB,  Facility Carried by Structure: HWY FOREST ST
Minimum Vertical Clearance: 10.95m (35.93ft),  Kilometerpoint: 71.163,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.5m (109.9ft)

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Structure Number: M1701931JDOTNBI,  Location: .6 MI N MERRIMAC RIVER (Lat: 42.700000,  Lng: -71.216667),  Route carried "under" structure: Interstate 93,  Year Built: 1959,  Structure Length: 0. m,  Average Daily Traffic: 40,000 (year 0000),  Features Intersected: I 93 NB,  Facility Carried by Structure: HWY FOREST ST
Minimum Vertical Clearance: 10.95m (35.93ft),  Kilometerpoint: 71.163,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.5m (109.9ft)

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Structure Number: M170322YFDOTNBI,  Location: 1 MI S ST213 (Lat: 42.733333,  Lng: -71.133333),  Route carried "under" structure: Interstate 495,  Year Built: 1962,  Structure Length: 0. m,  Average Daily Traffic: 36,000 (year 0000),  Features Intersected: I 495 SB,  Facility Carried by Structure: ST110 MERRIMAC ST
Minimum Vertical Clearance: 5.00m (16.40ft),  Kilometerpoint: 166.171,  Lanes on structure: 3,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 26.8m (87.9ft)

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Structure Number: M170322YFDOTNBI,  Location: 1 MI S ST213 (Lat: 42.733333,  Lng: -71.133333),  Route carried "under" structure: Interstate 495,  Year Built: 1962,  Structure Length: 0. m,  Average Daily Traffic: 36,000 (year 0000),  Features Intersected: I 495 NB,  Facility Carried by Structure: ST110 MERRIMAC ST
Minimum Vertical Clearance: 5.00m (16.40ft),  Kilometerpoint: 166.171,  Lanes on structure: 3,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 26.8m (87.9ft)

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Structure Number: M1703530RDOTNBI,  Location: .2 MI ST213 (Lat: 42.750000,  Lng: -71.150000),  Route carried "under" structure: Interstate 495,  Year Built: 1964,  Structure Length: 0. m,  Average Daily Traffic: 40,000 (year 0000),  Features Intersected: I 495 NB,  Facility Carried by Structure: HWY PLSNT VLY ST
Minimum Vertical Clearance: 5.05m (16.57ft),  Kilometerpoint: 168.167,  Lanes on structure: 3,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.8m (110.9ft)