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


  • National Bridge Inventory (NBI) Statistics
  • 15Number of bridges
  • 115ft / 34.6mTotal length
  • $4,000Total costs
  • 304,813Total average daily traffic
  • 39,864Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Flat Rock
  • No street view available for this location

New bridges in Flat Rock, MI - historical statistics
  • New bridges - historical statistics
  • 31920-1929
  • 21970-1979
  • 11990-1999
  • 72000-2009
  • 22010-2019
Reconstructed bridges in Flat Rock, MI - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11960-1969
  • 01970-1979
  • 11980-1989
  • 01990-1999
  • 12000-2009
Average Bridge Daily Traffic in Flat Rock, MI
Average Bridge Truck Traffic in Flat Rock, MI
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 25.0%Good
  • 50.0%Satisfactory
  • 25.0%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 25.0%Very good
  • 25.0%Good
  • 50.0%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 25.0%Very good
  • 50.0%Good
  • 25.0%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 50.0%Very good
  • 30.0%Good
  • 20.0%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 12.5%Excellent
  • 50.0%Very good
  • 25.0%Good
  • 12.5%Satisfactory
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Structure Number: 7133,  Location: @ WAYNE CO LINE (Lat: 42.094694,  Lng: -83.294925),  Route carried "on" structure: US 24,  Year Built: 2001,  Status: Open,  Structure Length: 5.74m (18.83ft),  Average Daily Traffic: 24,306 (year 2007),  Truck Traffic: 1%,  Average Future Daily Traffic: 31,889 (year 2018),  Design Load: HS 25 or greater,  Features Intersected: HURON RIVER
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Base Highway Network: Yes (Inventory Route: 470,  Subroute: 38),  Owner: State Highway Agency,  Approaching Roadway Width: 19.2m (63.0ft),  Skew: 9 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 28.7m (94.2ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 19.2m (63.0ft),  Out-to-Out Width: 23.4m (76.8ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Good,  Channel: Good,  Operating Rating: 60.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 36.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  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: 11273,  Location: 1.3 MI NE OF MONROE COL (Lat: 42.112333,  Lng: -83.283225),  Route carried "on" structure: US 24,  Year Built: 2005,  Status: Open,  Structure Length: 0.61m (2.00ft),  Average Daily Traffic: 23,486 (year 2007),  Truck Traffic: 1%,  Average Future Daily Traffic: 27,158 (year 2018),  Design Load: HS 25 or greater,  Features Intersected: SILVER CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 2.244,  Lanes on structure: 4,  Base Highway Network: Yes (Inventory Route: 470,  Subroute: 38),  Owner: State Highway Agency,  Approaching Roadway Width: 18.2m (59.7ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 5.5m (18.0ft),  Curb-To-Curb Width: 19.5m (64.0ft),  Out-to-Out Width: 42.7m (140.1ft)

Condition: Channel: Satisfactory,  Culverts: 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: Better than present minimum criteria,  Waterway Adequacy: Equal 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,  Inspection Date: May 2020,  Bridge Improvement Cost: $9,000,  Total Project Cost: $4,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 11274,  Location: 1.7 MI NE OF FLATROCK (Lat: 42.117606,  Lng: -83.279747),  Route carried "on" structure: US 24,  Year Built: 2011,  Status: Open,  Structure Length: 0.80m (2.62ft),  Average Daily Traffic: 27,700 (year 2008),  Truck Traffic: 4%,  Average Future Daily Traffic: 33,800 (year 2028),  Design Load: Greater than HL93,  Features Intersected: SMITH CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 2.895,  Lanes on structure: 5,  Base Highway Network: Yes (Inventory Route: 470,  Subroute: 38),  Owner: State Highway Agency,  Approaching Roadway Width: 17.1m (56.1ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 18.9m (62.0ft),  Out-to-Out Width: 33.5m (109.9ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 41.5 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: 32.1 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: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2020,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 11632,  Location: 1.5 MI N OF N HURON RI DR (Lat: 42.083011,  Lng: -83.243306),  Route carried "on" structure: State highway 85,  Year Built: 2008,  Status: Open,  Structure Length: 0.68m (2.23ft),  Average Daily Traffic: 2,664 (year 2007),  Truck Traffic: 19%,  Average Future Daily Traffic: 5,233 (year 2028),  Design Load: Greater than HL93,  Features Intersected: SMITH CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.177,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 159,  Subroute: 6),  Owner: State Highway Agency,  Approaching Roadway Width: 10.9m (35.8ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.3m (20.7ft),  Out-to-Out Width: 30.3m (99.4ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 97.2 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,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 11633,  Location: 1.5 MI N OF N HURON RI DR (Lat: 42.082894,  Lng: -83.242208),  Route carried "on" structure: Interstate 75,  Year Built: 2008,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 28,645 (year 2007),  Truck Traffic: 19%,  Average Future Daily Traffic: 95,990 (year 2028),  Design Load: Greater than HL93,  Features Intersected: SMITH CREEK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.923,  Lanes on structure: 7,  Base Highway Network: Yes (Inventory Route: 159,  Subroute: 10),  Owner: State Highway Agency,  Approaching Roadway Width: 30.4m (99.7ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.3m (20.7ft),  Out-to-Out Width: 91.1m (298.9ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 95.3 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,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 11644,  Location: @ M-85 (Lat: 42.085169,  Lng: -83.241683),  Route carried "on" structure: State highway 85,  Year Built: 2005,  Year Reconstructed: 2008,  Status: Open,  Structure Length: 10.47m (34.35ft),  Average Daily Traffic: 5,233 (year 2007),  Truck Traffic: 19%,  Average Future Daily Traffic: 10,200 (year 2028),  Design Load: HS 20+Mod,  Features Intersected: I-75 NB
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.454,  Lanes on structure: 2,  Lanes under structure: 3,  Base Highway Network: Yes (Inventory Route: 159,  Subroute: 6),  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 56.0m (183.7ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 14.4m (47.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 57.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 34.3 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: Superior to present desirable criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 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: 11645,  Location: 0.7 MI N OF M-85 (Lat: 42.095381,  Lng: -83.241547),  Route carried "on" structure: County highway 2057,  Year Built: 1971,  Status: Open,  Structure Length: 6.93m (22.74ft),  Average Daily Traffic: 16,600 (year 2010),  Truck Traffic: 5%,  Average Future Daily Traffic: 19,090 (year 2030),  Design Load: HS 20,  Features Intersected: I-75,  Facility Carried by Structure: GIBRALTAR RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 4.030,  Lanes on structure: 4,  Lanes under structure: 8,  Owner: State Highway Agency,  Approaching Roadway Width: 27.6m (90.6ft),  Skew: 30 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 35.7m (117.1ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 0.0m,  Curb-To-Curb Width: 24.4m (80.1ft),  Out-to-Out Width: 28.6m (93.8ft)

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: Superior to present desirable criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: 11984,  Location: HURON S/HURON RIVER DR. (Lat: 42.116000,  Lng: -83.357100),  Route carried "on" structure: County highway 8206,  Year Built: 1922,  Year Reconstructed: 1993,  Status: Open,  Structure Length: 5.85m (19.19ft),  Average Daily Traffic: 7,481 (year 1997),  Truck Traffic: 5%,  Average Future Daily Traffic: 4,000 (year 2015),  Design Load: HS 20,  Features Intersected: HURON RIVER,  Facility Carried by Structure: WILLOW ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 11.206,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Concrete continuous,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 33.2m (108.9ft),  Curb-To-Curb Width: 7.7m (25.3ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 97.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 58.3 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: 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: June 2021
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Structure Number: 11991,  Location: FLATROCKE/TELEGRAPH (Lat: 42.094567,  Lng: -83.275097),  Route carried "on" structure: County highway 2057,  Year Built: 1928,  Year Reconstructed: 1974,  Status: Posted for load,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 11,804 (year 1992),  Truck Traffic: 2%,  Average Future Daily Traffic: 13,575 (year 2015),  Design Load: HS 20+Mod,  Features Intersected: SILVER CREEK,  Facility Carried by Structure: GIBRALTAR ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.254,  Lanes on structure: 4,  Owner: County Highway Agency,  Approaching Roadway Width: 14.6m (47.9ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.4m (21.0ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 21.3m (69.9ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 31.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 19.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 12001,  Location: BROWNSTOWN E/INKSTER (Lat: 42.123475,  Lng: -83.294889),  Route carried "on" structure: County highway 2057,  Year Built: 2018,  Status: Open,  Structure Length: 0.72m (2.36ft),  Average Daily Traffic: 8,920 (year 2017),  Truck Traffic: 2%,  Average Future Daily Traffic: 9,210 (year 2037),  Design Load: Greater than HL93,  Features Intersected: SILVER CREEK,  Facility Carried by Structure: VAN HORN ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 4.646,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.2m (23.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 34.9m (114.5ft)

Condition: Channel: Very good,  Culverts: Excellent,  Operating Rating: 71.9 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: 55.4 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: Superior to present desirable criteria,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2020,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete
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Structure Number: 12008,  Location: HURON W/INKSTER (Lat: 42.137714,  Lng: -83.313297),  Route carried "on" structure: County highway 8212,  Year Built: 2001,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 623 (year 1997),  Truck Traffic: 1%,  Average Future Daily Traffic: 951 (year 2015),  Design Load: HS 20,  Features Intersected: SILVER CREEK,  Facility Carried by Structure: WEST ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 4.130,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 5.7m (18.7ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Out-to-Out Width: 26.8m (87.9ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 69.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 41.5 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 desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 12164,  Location: BROWNSTOWN/HURON S/GRIX (Lat: 42.130075,  Lng: -83.304608),  Route carried "on" structure: County highway 2057,  Year Built: 1997,  Status: Open,  Structure Length: 0.77m (2.53ft),  Average Daily Traffic: 4,400 (year 1996),  Truck Traffic: 5%,  Average Future Daily Traffic: 3,610 (year 2015),  Design Load: HS 25 or greater,  Features Intersected: SILVER CREEK,  Facility Carried by Structure: INKSTER ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.535,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.3m (10.8ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 123.7m (405.8ft)

Condition: Channel: Good,  Culverts: Very good,  Operating Rating: 63.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 37.9 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: Better than 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: May 2021
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Structure Number: 11275,  Location: IN FLAT ROCK (Lat: 42.102317,  Lng: -83.289767),  Route carried "under" structure: US 24,  Year Built: 1926,  Structure Length: 0. m,  Average Daily Traffic: 24,306 (year 2007),  Truck Traffic: 2%,  Features Intersected: US-24,  Facility Carried by Structure: GTW RR
Minimum Vertical Clearance: 4.72m (15.49ft),  Kilometerpoint: 1.006,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Girder and Floorbeam System,  Length of Maximum Span: 16.7m (54.8ft)

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Structure Number: 11644,  Location: @ M-85 (Lat: 42.085169,  Lng: -83.241683),  Route carried "under" structure: Interstate 75,  Year Built: 2005,  Structure Length: 0. m,  Average Daily Traffic: 28,645 (year 2007),  Truck Traffic: 29%,  Features Intersected: I-75 NB,  Facility Carried by Structure: M-85 SB
Minimum Vertical Clearance: 4.83m (15.85ft),  Kilometerpoint: 2.181,  Lanes on structure: 2,  Lanes under structure: 3,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 56.0m (183.7ft)

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Structure Number: 11645,  Location: 0.7 MI N OF M-85 (Lat: 42.095381,  Lng: -83.241547),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 90,000 (year 2015),  Truck Traffic: 23%,  Features Intersected: I-75,  Facility Carried by Structure: GIBRALTAR RD
Minimum Vertical Clearance: 4.82m (15.81ft),  Kilometerpoint: 3.315,  Lanes on structure: 4,  Lanes under structure: 8,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 35.7m (117.1ft)

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