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Bridge Statistics for Zilwaukee, Michigan (MI)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 24Number of bridges
  • 1,873ft / 571mTotal length
  • $410,000Total costs
  • 365,179Total average daily traffic
  • 25,657Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Zilwaukee
  • No street view available for this location

New bridges in Zilwaukee, MI - historical statistics
  • New bridges - historical statistics
  • 11950-1959
  • 21960-1969
  • 111970-1979
  • 71980-1989
  • 12000-2009
  • 22010-2019
Reconstructed bridges in Zilwaukee, MI - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 22000-2009
  • 22010-2019
Average Bridge Daily Traffic in Zilwaukee, MI
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 21.4%Very good
  • 21.4%Good
  • 42.9%Satisfactory
  • 14.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 35.7%Very good
  • 7.1%Good
  • 50.0%Satisfactory
  • 7.1%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 14.3%Very good
  • 57.1%Good
  • 14.3%Satisfactory
  • 14.3%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 25.0%Very good
  • 37.5%Good
  • 25.0%Satisfactory
  • 12.5%Fair
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Structure Number: 599,  Location: @ SAGINAW COUNTY LINE (Lat: 43.522958,  Lng: -83.939931),  Route carried "on" structure: Interstate 75,  Year Built: 2010,  Status: Open,  Structure Length: 0.62m (2.03ft),  Average Daily Traffic: 53,002 (year 2007),  Truck Traffic: 5%,  Average Future Daily Traffic: 75,910 (year 2018),  Design Load: Greater than HL93,  Features Intersected: GOETZ DRAIN
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.023,  Lanes on structure: 6,  Base Highway Network: Yes (Inventory Route: 76,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 1 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.2m (20.3ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 48.5m (159.1ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 82.3 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: 63.5 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 desirable criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2021
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Structure Number: 718,  Location: 1.0 MI S OF AMELITH RD (Lat: 43.525908,  Lng: -83.934672),  Route carried "on" structure: County highway ,  Year Built: 2016,  Status: Open,  Structure Length: 1.10m (3.61ft),  Average Daily Traffic: 156 (year 2000),  Truck Traffic: 10%,  Average Future Daily Traffic: 187 (year 2020),  Design Load: Greater than HL93,  Features Intersected: GOETZ DRAIN,  Facility Carried by Structure: TWO MILE ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.651,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.2m (33.5ft),  Curb-To-Curb Width: 9.5m (31.2ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 74.5 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: 57.3 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 desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.00m (3.28ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Bridge Improvement Cost: $168,000,  Roadway Improvement Cost: $140,000,  Total Project Cost: $340,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 917,  Location: 0.8 MI S OF NILES (Lat: 41.801086,  Lng: -86.248300),  Route carried "on" structure: US 12,  Year Built: 1955,  Status: Open,  Structure Length: 4.80m (15.75ft),  Average Daily Traffic: 7,473 (year 2014),  Truck Traffic: 10%,  Average Future Daily Traffic: 8,594 (year 2034),  Design Load: HS 20,  Features Intersected: M-51
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 39.837,  Lanes on structure: 2,  Lanes under structure: 5,  Base Highway Network: Yes (Inventory Route: 135,  Subroute: 7),  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 24.0m (78.7ft),  Curb-To-Curb Width: 10.1m (33.1ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 58.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 34.7 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,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.79m (15.72ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2020,  Bridge Improvement Cost: $233,000,  Roadway Improvement Cost: $6,000,  Total Project Cost: $70,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 9117,  Location: @ N JCT I-75 (Lat: 43.506669,  Lng: -83.932550),  Route carried "on" structure: Ramp Interstate 75,  Year Built: 1971,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 2,200 (year 1988),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,290 (year 2008),  Design Load: HS 20+Mod,  Features Intersected: KOCHVILLE DRAIN
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.041,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.1m (43.0ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 24.3m (79.7ft),  Curb-To-Curb Width: 12.0m (39.4ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 65.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 39.2 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: 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,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: 9145,  Location: 2.6 MI N OF SAGINAW (Lat: 43.479825,  Lng: -83.955869),  Route carried "on" structure: County highway 2004,  Year Built: 1971,  Status: Open,  Structure Length: 7.32m (24.02ft),  Average Daily Traffic: 9,945 (year 1996),  Truck Traffic: 3%,  Average Future Daily Traffic: 11,540 (year 2006),  Design Load: H 20,  Features Intersected: I-675,  Facility Carried by Structure: TITTABAWASSEE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 33.514,  Lanes on structure: 7,  Lanes under structure: 6,  Base Highway Network: Yes (Inventory Route: 89,  Subroute: 2),  Owner: State Highway Agency,  Approaching Roadway Width: 29.2m (95.8ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 36.6m (120.1ft),  Curb-To-Curb Width: 28.8m (94.5ft),  Out-to-Out Width: 30.0m (98.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 68.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 41.1 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: Somewhat better than minimum adequacy,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: 9146,  Location: 1.0 MI S OF I-75 (Lat: 43.488775,  Lng: -83.946047),  Route carried "on" structure: County highway 2004,  Year Built: 1971,  Status: Open,  Structure Length: 9.56m (31.36ft),  Average Daily Traffic: 4,050 (year 1996),  Truck Traffic: 3%,  Average Future Daily Traffic: 2,260 (year 2006),  Design Load: H 15,  Features Intersected: I-675,  Facility Carried by Structure: MICHIGAN RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 15.078,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 47,  Subroute: 3),  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: 4,  Length of Maximum Span: 34.7m (113.8ft),  Curb-To-Curb Width: 11.7m (38.4ft),  Out-to-Out Width: 12.9m (42.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 73.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 44.1 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: Somewhat better than minimum adequacy,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: 9147,  Location: 0.5 MI S OF I-75 (Lat: 43.494036,  Lng: -83.937253),  Route carried "on" structure: Interstate 675,  Year Built: 1971,  Year Reconstructed: 2009,  Status: Open,  Structure Length: 9.33m (30.61ft),  Average Daily Traffic: 3,061 (year 2017),  Truck Traffic: 10%,  Average Future Daily Traffic: 3,250 (year 2037),  Design Load: HS 20+Mod,  Features Intersected: KOCHVILLE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 11.951,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: 46,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 5 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 41.6m (136.5ft),  Curb-To-Curb Width: 13.2m (43.3ft),  Out-to-Out Width: 13.9m (45.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 82.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 49.6 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,  Deck Geometry: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9152,  Location: @ N JCT I-75 (Lat: 43.498950,  Lng: -83.929992),  Route carried "on" structure: Ramp Interstate 675,  Year Built: 1971,  Year Reconstructed: 2009,  Status: Open,  Structure Length: 11.50m (37.73ft),  Average Daily Traffic: 1,290 (year 1982),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,290 (year 1977),  Design Load: HS 20,  Features Intersected: I-75
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 12.761,  Lanes on structure: 1,  Lanes under structure: 6,  Owner: State Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 42.5m (139.4ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 9.0m (29.5ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Inventory Rating: 62.0 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: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Bridge Improvement Cost: $116,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9166,  Location: 1.0 MI S OF BAY CO LINE (Lat: 43.506286,  Lng: -83.933025),  Route carried "on" structure: Interstate 75,  Year Built: 1960,  Year Reconstructed: 2017,  Status: Open,  Structure Length: 1.58m (5.18ft),  Average Daily Traffic: 25,430 (year 2014),  Truck Traffic: 6%,  Average Future Daily Traffic: 58,489 (year 2034),  Design Load: Greater than HL93,  Features Intersected: KOCHVILLE DRAIN
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 35.919,  Lanes on structure: 3,  Base Highway Network: Yes (Inventory Route: 46,  Subroute: 3),  Owner: State Highway Agency,  Approaching Roadway Width: 17.7m (58.1ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.0m (49.2ft),  Curb-To-Curb Width: 17.7m (58.1ft),  Out-to-Out Width: 18.6m (61.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Fair,  Channel: Good,  Operating Rating: 55.7 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: 42.8 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: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9167,  Location: 1.0 MI S OF BAY CO LINE (Lat: 43.506061,  Lng: -83.933256),  Route carried "on" structure: Interstate 75,  Year Built: 1960,  Year Reconstructed: 2017,  Status: Open,  Structure Length: 1.58m (5.18ft),  Average Daily Traffic: 25,430 (year 2014),  Truck Traffic: 6%,  Average Future Daily Traffic: 58,489 (year 2034),  Design Load: Greater than HL93,  Features Intersected: KOCHVILLE DRAIN
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 35.898,  Lanes on structure: 4,  Base Highway Network: Yes (Inventory Route: 46,  Subroute: 2),  Owner: State Highway Agency,  Approaching Roadway Width: 21.3m (69.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.0m (49.2ft),  Curb-To-Curb Width: 21.3m (69.9ft),  Out-to-Out Width: 22.3m (73.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 55.4 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: 39.9 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 desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9168,  Location: AT ZILWAUKEE (Lat: 43.478792,  Lng: -83.906411),  Route carried "on" structure: Interstate 75,  Year Built: 1980,  Status: Open,  Structure Length: 245.70m (806.10ft),  Average Daily Traffic: 23,450 (year 2007),  Truck Traffic: 7%,  Average Future Daily Traffic: 34,201 (year 2018),  Design Load: HS 25 or greater,  Features Intersected: SAGINAW R, M13, GTWRR
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 32.000,  Lanes on structure: 4,  Lanes under structure: 3,  Base Highway Network: Yes (Inventory Route: 46,  Subroute: 3),  Owner: State Highway Agency,  Approaching Roadway Width: 19.5m (64.0ft),  Navigation Control: Yes ( Vertical Clearance: 0.3m (1.0ft), Horizontal Clearance: 91.4m (299.9ft)),  Material/Design: Prestressed concrete continuous,  Design/Construction: Segmental Box Girder,  Number Of Spans In Main Unit: 25,  Length of Maximum Span: 119.5m (392.1ft),  Curb-To-Curb Width: 22.0m (72.2ft),  Out-to-Out Width: 22.7m (74.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 42.8 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: 26.2 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: Better than present minimum criteria,  Underclear: 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 60 months,  Inspection Date: October 2021,  Underwater Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Latex Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9169,  Location: AT ZILWAUKEE (Lat: 43.478539,  Lng: -83.906436),  Route carried "on" structure: Interstate 75,  Year Built: 1984,  Status: Open,  Structure Length: 246.43m (808.50ft),  Average Daily Traffic: 23,450 (year 2007),  Truck Traffic: 7%,  Average Future Daily Traffic: 34,201 (year 2018),  Design Load: HS 25 or greater,  Features Intersected: SAGINAW R, M-13, GTWRR
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 31.964,  Lanes on structure: 4,  Lanes under structure: 3,  Base Highway Network: Yes (Inventory Route: 46,  Subroute: 2),  Owner: State Highway Agency,  Approaching Roadway Width: 19.5m (64.0ft),  Navigation Control: Yes ( Vertical Clearance: 0.3m (1.0ft), Horizontal Clearance: 91.4m (299.9ft)),  Material/Design: Prestressed concrete continuous,  Design/Construction: Segmental Box Girder,  Number Of Spans In Main Unit: 26,  Length of Maximum Span: 119.5m (392.1ft),  Curb-To-Curb Width: 22.0m (72.2ft),  Out-to-Out Width: 22.7m (74.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 35.0 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: 11.7 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: High priority of corrective action,  Deck Geometry: Better than present minimum criteria,  Underclear: 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 60 months,  Inspection Date: October 2020,  Underwater Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Latex Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 917,  Location: AT ZILWAUKEE (Lat: 43.487703,  Lng: -83.924786),  Route carried "on" structure: Ramp Interstate 75,  Year Built: 1984,  Status: Open,  Structure Length: 19.75m (64.80ft),  Average Daily Traffic: 4,100 (year 1988),  Truck Traffic: 12%,  Average Future Daily Traffic: 4,000 (year 1977),  Design Load: HS 25 or greater,  Features Intersected: LAND FOR RAISED RAMP
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.441,  Lanes on structure: 1,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Segmental Box Girder,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 74.0m (242.8ft),  Curb-To-Curb Width: 8.3m (27.2ft),  Out-to-Out Width: 8.9m (29.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 41.8 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: 31.1 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Latex Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9172,  Location: 1.7 MI NW OF M-13 (Lat: 43.493983,  Lng: -83.927908),  Route carried "on" structure: County highway 2004,  Year Built: 1980,  Status: Open,  Structure Length: 7.62m (25.00ft),  Average Daily Traffic: 2,059 (year 1997),  Truck Traffic: 3%,  Average Future Daily Traffic: 500 (year 1977),  Design Load: H 20,  Features Intersected: I-75,  Facility Carried by Structure: KOCHVILLE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 10.012,  Lanes on structure: 2,  Lanes under structure: 8,  Owner: State Highway Agency,  Approaching Roadway Width: 14.0m (45.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 38.1m (125.0ft),  Curb-To-Curb Width: 13.2m (43.3ft),  Out-to-Out Width: 13.9m (45.6ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 66.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 39.5 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,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Latex Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 923,  Location: 0.4 MI E OF N MICHIGAN (Lat: 43.494058,  Lng: -83.938139),  Route carried "on" structure: County highway 7382,  Year Built: 2001,  Status: Open,  Structure Length: 1.45m (4.76ft),  Average Daily Traffic: 3,437 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 3,609 (year 2028),  Design Load: HS 20,  Features Intersected: KOCHVILLE DRAIN,  Facility Carried by Structure: KOCHVILLE ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 9.185,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.9m (39.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.0m (42.7ft),  Curb-To-Curb Width: 12.5m (41.0ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Fair,  Operating Rating: 59.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 36.0 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 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9145,  Location: 2.6 MI N OF SAGINAW (Lat: 43.479825,  Lng: -83.955869),  Route carried "under" structure: Interstate 675,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 26,064 (year 2017),  Truck Traffic: 6%,  Features Intersected: I-675,  Facility Carried by Structure: TITTABAWASSEE RD
Minimum Vertical Clearance: 4.62m (15.16ft),  Kilometerpoint: 9.421,  Lanes on structure: 7,  Lanes under structure: 6,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 36.6m (120.1ft)

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Structure Number: 9146,  Location: 1.0 MI S OF I-75 (Lat: 43.488775,  Lng: -83.946047),  Route carried "under" structure: Interstate 675,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 6,125 (year 2017),  Truck Traffic: 10%,  Features Intersected: I-675,  Facility Carried by Structure: MICHIGAN RD
Minimum Vertical Clearance: 4.52m (14.83ft),  Kilometerpoint: 10.735,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 34.7m (113.8ft)

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Structure Number: 9147,  Location: 0.5 MI S OF I-75 (Lat: 43.494036,  Lng: -83.937253),  Route carried "under" structure: County highway 7382,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 2,110 (year 1997),  Features Intersected: KOCHVILLE RD,  Facility Carried by Structure: I-675 SB
Minimum Vertical Clearance: 4.40m (14.44ft),  Kilometerpoint: 9.257,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 41.6m (136.5ft)

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Structure Number: 9148,  Location: N JCT I-75 (Lat: 43.498453,  Lng: -83.929783),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 38,878 (year 2007),  Truck Traffic: 11%,  Features Intersected: I-75
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 34.969,  Lanes on structure: 2,  Lanes under structure: 6,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 39.5m (129.6ft)

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Structure Number: 915,  Location: 0.5 MI S OF I-75 (Lat: 43.494025,  Lng: -83.936669),  Route carried "under" structure: County highway 7382,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 2,110 (year 1997),  Features Intersected: KOCHVILLE RD,  Facility Carried by Structure: I-675 NB
Minimum Vertical Clearance: 4.90m (16.08ft),  Kilometerpoint: 9.304,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 41.6m (136.5ft)

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Structure Number: 9152,  Location: @ N JCT I-75 (Lat: 43.498950,  Lng: -83.929992),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 52,000 (year 2007),  Truck Traffic: 5%,  Features Intersected: I-75
Minimum Vertical Clearance: 5.23m (17.16ft),  Kilometerpoint: 35.054,  Lanes on structure: 1,  Lanes under structure: 6,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 42.5m (139.4ft)

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Structure Number: 9168,  Location: AT ZILWAUKEE (Lat: 43.478792,  Lng: -83.906411),  Route carried "under" structure: State highway 13,  Year Built: 1980,  Structure Length: 0. m,  Average Daily Traffic: 6,208 (year 2007),  Truck Traffic: 6%,  Features Intersected: SAGINAW R, M13, GTWRR,  Facility Carried by Structure: I-75 NB
Minimum Vertical Clearance: 6.68m (21.92ft),  Kilometerpoint: 3.265,  Lanes on structure: 4,  Lanes under structure: 3,  Material/Design: Prestressed concrete continuous,  Design/Construction: Segmental Box Girder,  Length of Maximum Span: 119.5m (392.1ft)

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Structure Number: 9169,  Location: AT ZILWAUKEE (Lat: 43.478539,  Lng: -83.906436),  Route carried "under" structure: State highway 13,  Year Built: 1984,  Structure Length: 0. m,  Average Daily Traffic: 4,273 (year 2007),  Truck Traffic: 9%,  Features Intersected: SAGINAW R, M-13, GTWRR,  Facility Carried by Structure: I-75 SB
Minimum Vertical Clearance: 6.68m (21.92ft),  Kilometerpoint: 3.237,  Lanes on structure: 4,  Lanes under structure: 3,  Material/Design: Prestressed concrete continuous,  Design/Construction: Segmental Box Girder,  Length of Maximum Span: 119.5m (392.1ft)

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Structure Number: 9172,  Location: 1.7 MI NW OF M-13 (Lat: 43.493983,  Lng: -83.927908),  Route carried "under" structure: Interstate 75,  Year Built: 1980,  Structure Length: 0. m,  Average Daily Traffic: 38,878 (year 2007),  Truck Traffic: 11%,  Features Intersected: I-75,  Facility Carried by Structure: KOCHVILLE RD
Minimum Vertical Clearance: 5.61m (18.41ft),  Kilometerpoint: 34.478,  Lanes on structure: 2,  Lanes under structure: 8,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 38.1m (125.0ft)

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