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Bridge Statistics for Potomac, Illinois (IL)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 21Number of bridges
  • 220ft / 67.2mTotal length
  • 6,545Total average daily traffic
  • 847Total average daily truck traffic
  • 9,515Total future (year 2032) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Potomac
  • No street view available for this location

New bridges in Potomac, IL - historical statistics
  • New bridges - historical statistics
  • 41930-1939
  • 21940-1949
  • 21970-1979
  • 61980-1989
  • 31990-1999
  • 32000-2009
  • 12010-2019
Average Bridge Truck Traffic in Potomac, IL
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 11.1%Very good
  • 22.2%Good
  • 61.1%Satisfactory
  • 5.6%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 16.7%Very good
  • 16.7%Good
  • 61.1%Satisfactory
  • 5.6%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 50.0%Very good
  • 27.8%Good
  • 16.7%Satisfactory
  • 5.6%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 9.5%Very good
  • 33.3%Good
  • 47.6%Satisfactory
  • 9.5%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 33.3%Good
  • 66.7%Satisfactory
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Structure Number: 920072,  Location: 0.5 MI N OF POTOMAC (Lat: 40.322019,  Lng: -87.801078),  Route carried "on" structure: County highway ,  Year Built: 1935,  Year Reconstructed: 1990,  Status: Open,  Structure Length: 3.23m (10.60ft),  Average Daily Traffic: 350 (year 2019),  Truck Traffic: 10%,  Average Future Daily Traffic: 616 (year 2032),  Design Load: HS 20,  Features Intersected: BLUEGRASS CREEK,  Facility Carried by Structure: FAS 331(CH 10)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 18.459,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 15.7m (51.5ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Fair,  Operating Rating: 52.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 31.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 920113,  Location: 1 MI SE ARMSTRONG (Lat: 40.292781,  Lng: -87.865569),  Route carried "on" structure: County highway ,  Year Built: 1943,  Status: Open,  Structure Length: 1.24m (4.07ft),  Average Daily Traffic: 100 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 205 (year 2032),  Design Load: H 15,  Features Intersected: STREAM,  Facility Carried by Structure: TR 42 A
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.699,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.0m (39.4ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 9.3m (30.5ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 35.3 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 21.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 920132,  Location: 1.5 MI N OF POTOMAC (Lat: 40.337539,  Lng: -87.801578),  Route carried "on" structure: County highway ,  Year Built: 1930,  Status: Open,  Structure Length: 0.68m (2.23ft),  Average Daily Traffic: 350 (year 2019),  Truck Traffic: 10%,  Average Future Daily Traffic: 411 (year 2032),  Features Intersected: STREAM,  Facility Carried by Structure: FAS 331(CH 10)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.737,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.3m (10.8ft)

Condition: Channel: Fair,  Culverts: Satisfactory,  Operating Rating: 28.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 16.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021
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Structure Number: 920181,  Location: 1 MI E OF POTOMAC (Lat: 40.300381,  Lng: -87.779869),  Route carried "on" structure: County highway ,  Year Built: 1987,  Status: Open,  Structure Length: 4.85m (15.91ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 154 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: BEAN CREEK,  Facility Carried by Structure: TR 140
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.683,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 63.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 40.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 9202,  Location: EAST EDGE OF PATOMAC (Lat: 40.304481,  Lng: -87.794619),  Route carried "on" structure: US 136,  Year Built: 2005,  Status: Open,  Structure Length: 6.06m (19.88ft),  Average Daily Traffic: 2,000 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 2,465 (year 2032),  Design Load: HS 20,  Features Intersected: BLUE GRASS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 322.842,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 10.5m (34.4ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.9m (71.9ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 0.0m,  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 13.7m (44.9ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 75.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 46.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present desirable 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 48 months,  Inspection Date: August 2018,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 920201,  Location: 1 MILE E OF POTOMAC (Lat: 40.300761,  Lng: -87.777528),  Route carried "on" structure: US 136,  Year Built: 2005,  Status: Open,  Structure Length: 5.97m (19.59ft),  Average Daily Traffic: 2,000 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 2,465 (year 2032),  Design Load: HS 20,  Features Intersected: BEAN CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 324.371,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 10.8m (35.4ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.6m (70.9ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 82.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 50.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Better than 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 48 months,  Inspection Date: August 2018,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 922006,  Location: 1.8 MI S OF POTOMAC (Lat: 40.275628,  Lng: -87.804883),  Route carried "on" structure: County highway ,  Year Built: 1932,  Status: Open,  Structure Length: 1.95m (6.40ft),  Average Daily Traffic: 375 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 565 (year 2032),  Features Intersected: KNIGHTS BRANCH,  Facility Carried by Structure: FAS 331(CH 10)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 23.705,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 3.5m (11.5ft),  Curb-To-Curb Width: 8.1m (26.6ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 76.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 46.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021
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Structure Number: 922007,  Location: 1.5 MI N OF COLLISON (Lat: 40.246764,  Lng: -87.804419),  Route carried "on" structure: County highway ,  Year Built: 1932,  Status: Open,  Structure Length: 1.02m (3.35ft),  Average Daily Traffic: 375 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 565 (year 2032),  Features Intersected: STREAM,  Facility Carried by Structure: FAS 331(CH 10)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 26.907,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.0m (9.8ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 40.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021
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Structure Number: 92308,  Location: 3 MI NE POTOMAC (Lat: 40.329039,  Lng: -87.762986),  Route carried "on" structure: County highway ,  Year Built: 1944,  Status: Posted for load,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: H 15,  Features Intersected: BEAN CREEK,  Facility Carried by Structure: TR 81
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.625,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 2 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: 6.1m (20.0ft),  Out-to-Out Width: 7.2m (23.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 11.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 6.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: High priority of corrective action,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923297,  Location: 3.5 MI SW POTOMAC (Lat: 40.258156,  Lng: -87.823789),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 2.32m (7.61ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: HS 20,  Features Intersected: KNIGHTS BRANCH,  Facility Carried by Structure: TR 74
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.582,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 53.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 32.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923301,  Location: .5 MI S OF POTOMAC (Lat: 40.298336,  Lng: -87.800397),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 11.52m (37.80ft),  Average Daily Traffic: 375 (year 2019),  Truck Traffic: 13%,  Average Future Daily Traffic: 822 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: MIDDLEFORK VERMILION,  Facility Carried by Structure: FAS 331(CH 10)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 21.146,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 923338,  Location: 2 MI NE POTOMAC (Lat: 40.321803,  Lng: -87.757150),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 18%,  Average Future Daily Traffic: 103 (year 2032),  Design Load: HS 20,  Features Intersected: BEAN CREEK,  Facility Carried by Structure: TR 174
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.063,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.5m (54.1ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923343,  Location: 3 MI NW POTOMAC (Lat: 40.344400,  Lng: -87.849419),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.65m (5.41ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 205 (year 2032),  Design Load: HS 20,  Features Intersected: BR BLUEGRASS CREEK,  Facility Carried by Structure: TR 85
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.416,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  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: 16.2m (53.1ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923345,  Location: 4 MI N POTOMAC (Lat: 40.357619,  Lng: -87.808644),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.68m (5.51ft),  Average Daily Traffic: 20 (year 2019),  Truck Traffic: 5%,  Average Future Daily Traffic: 205 (year 2032),  Design Load: HS 20,  Features Intersected: BLUEGRASS CREEK BR,  Facility Carried by Structure: TR 61
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.755,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 16.5m (54.1ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.3m (27.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923353,  Location: 2.5 MI NW POTOMAC (Lat: 40.343011,  Lng: -87.820611),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Open,  Structure Length: 3.69m (12.11ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: HS 20,  Features Intersected: BLUEGRASS CREEK,  Facility Carried by Structure: TR 70 A
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.823,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.1m (43.0ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923395,  Location: 1 MI N OF POTOMAC (Lat: 40.325111,  Lng: -87.806711),  Route carried "on" structure: County highway ,  Year Built: 1989,  Status: Open,  Structure Length: 3.61m (11.84ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 205 (year 2032),  Design Load: HS 20,  Features Intersected: BLUEGRASS CREEK,  Facility Carried by Structure: TR 85
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.177,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.4m (40.7ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923405,  Location: 2.5 MI S POTOMAC (Lat: 40.270542,  Lng: -87.807814),  Route carried "on" structure: County highway ,  Year Built: 1991,  Status: Open,  Structure Length: 3.28m (10.76ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: HS 20,  Features Intersected: KNIGHT'S BRANCH,  Facility Carried by Structure: TR 131
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 10.348,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 13.1m (43.0ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 44.4 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 923406,  Location: 2 MI NE OF POTOMAC (Lat: 40.314408,  Lng: -87.763447),  Route carried "on" structure: County highway ,  Year Built: 1992,  Status: Open,  Structure Length: 3.75m (12.30ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: HS 20,  Features Intersected: BEAN CREEK,  Facility Carried by Structure: TR 89
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.529,  Lanes on structure: 1,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  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,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923408,  Location: 3 MI NW OF POTOMAC (Lat: 40.336172,  Lng: -87.819539),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 4.68m (15.35ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 6%,  Average Future Daily Traffic: 112 (year 2032),  Design Load: HS 20,  Features Intersected: BLUEGRASS CREEK,  Facility Carried by Structure: TR 69 B
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.080,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.8m (55.1ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels
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Structure Number: 923483,  Location: 3 MI NW OF COLLISON (Lat: 40.255831,  Lng: -87.824569),  Route carried "on" structure: County highway ,  Year Built: 2005,  Status: Open,  Structure Length: 2.28m (7.48ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 61 (year 2032),  Design Load: HS 20,  Features Intersected: KNIGHTS BRANCH,  Facility Carried by Structure: TR 135
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.883,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 21.9m (71.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.3m (24.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported by rating factor (RF) using MS18 loading,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel
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Structure Number: 923523,  Location: 3 MI SE ARMSTRONG (Lat: 40.270394,  Lng: -87.856467),  Route carried "on" structure: County highway ,  Year Built: 2013,  Status: Open,  Structure Length: 1.41m (4.63ft),  Average Daily Traffic: 50 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 51 (year 2032),  Design Load: HS 25 or greater,  Features Intersected: STREAM,  Facility Carried by Structure: TR 131
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 6.212,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.4m (44.0ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 42.1 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Load and Resistance Factor Design (LRFD) reported by rating factor (RF) using HL93 loadings,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: Febuary 2019,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Gravel,  Membrane: Other,  Deck Protection: Epoxy Coated Reinforcing
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