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


  • National Bridge Inventory (NBI) Statistics
  • 18Number of bridges
  • 89ft / 27.3mTotal length
  • $8,000Total costs
  • 24,121Total average daily traffic
  • 1,149Total average daily truck traffic
  • 41,996Total future (year 2017) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Britton
  • No street view available for this location

New bridges in Britton, MI - historical statistics
  • New bridges - historical statistics
  • 31960-1969
  • 11970-1979
  • 51980-1989
  • 41990-1999
  • 52000-2009
Average Bridge Daily Traffic in Britton, MI
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 31.3%Very good
  • 43.8%Good
  • 18.8%Satisfactory
  • 6.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 25.0%Very good
  • 50.0%Good
  • 12.5%Satisfactory
  • 6.3%Fair
  • 6.3%Poor
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 56.3%Very good
  • 37.5%Good
  • 6.3%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 16.7%Very good
  • 44.4%Good
  • 22.2%Satisfactory
  • 16.7%Fair
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 50.0%Very good
  • 50.0%Poor
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Structure Number: 554,  Location: 3 MI N OF MIDDLEVILLE (Lat: 42.755706,  Lng: -85.461247),  Route carried "on" structure: County highway 892,  Year Built: 1968,  Status: Open,  Structure Length: 4.57m (14.99ft),  Average Daily Traffic: 1,147 (year 2015),  Truck Traffic: 2%,  Average Future Daily Traffic: 1,205 (year 2035),  Design Load: HS 20+Mod,  Features Intersected: THORNAPPLE RIVER,  Facility Carried by Structure: PARMALEE ROAD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 4.920,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.6m (31.5ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 9.5m (31.2ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Satisfactory,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 56.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 33.7 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: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 4.57m (14.99ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: July 2021,  Bridge Improvement Cost: $8,000,  Total Project Cost: $8,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 5537,  Location: 1.1 MI E OF BRITTON (Lat: 41.983594,  Lng: -83.812558),  Route carried "on" structure: State highway 50,  Year Built: 2000,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 6,646 (year 2007),  Truck Traffic: 6%,  Average Future Daily Traffic: 15,934 (year 2018),  Design Load: HS 25 or greater,  Features Intersected: SCHREEDER BROOK
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 37.654,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 94,  Subroute: 5),  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb or Sidewalk Widths: Left: 0.4m (1.3ft),  Right: 0.4m (1.3ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.8m (45.3ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 83.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 44.7 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,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 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: 554,  Location: WEST LIMITS OF BRITTON (Lat: 41.987650,  Lng: -83.836161),  Route carried "on" structure: State highway 50,  Year Built: 2000,  Status: Open,  Structure Length: 1.05m (3.44ft),  Average Daily Traffic: 6,842 (year 2007),  Truck Traffic: 7%,  Average Future Daily Traffic: 7,860 (year 2017),  Design Load: HS 25 or greater,  Features Intersected: WILSON SPRING DRAIN
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 35.650,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 94,  Subroute: 5),  Owner: State Highway Agency,  Approaching Roadway Width: 14.3m (46.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.5m (31.2ft),  Curb-To-Curb Width: 13.1m (43.0ft),  Out-to-Out Width: 14.2m (46.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: 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: Better than present minimum criteria,  Deck Geometry: 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: September 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: 5577,  Location: 0.5 MI E OF BRITTON HWY (Lat: 42.009033,  Lng: -83.820717),  Route carried "on" structure: County highway ,  Year Built: 1978,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 217 (year 2011),  Truck Traffic: 2%,  Average Future Daily Traffic: 900 (year 2031),  Design Load: H 20,  Features Intersected: MACON RIVER MIDDLE BR,  Facility Carried by Structure: MILWAUKEE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 7.390,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Very good,  Channel: Satisfactory,  Operating Rating: 39.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 23.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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: March 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 5602,  Location: WEST OF BRITTON HWY (Lat: 42.021989,  Lng: -83.835319),  Route carried "on" structure: County highway 4675,  Year Built: 1997,  Status: Open,  Structure Length: 1.49m (4.89ft),  Average Daily Traffic: 5,309 (year 2011),  Truck Traffic: 3%,  Average Future Daily Traffic: 7,500 (year 2031),  Design Load: HS 20,  Features Intersected: MACON RIVER,  Facility Carried by Structure: RIDGE HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 11.293,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.7m (44.9ft),  Curb-To-Curb Width: 10.1m (33.1ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 55.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: High priority of corrective action,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 5603,  Location: 0.2 MI SOUTH OF SMITH RD (Lat: 42.019500,  Lng: -83.830722),  Route carried "on" structure: County highway 4685,  Year Built: 1963,  Status: Open,  Structure Length: 1.34m (4.40ft),  Average Daily Traffic: 1,035 (year 2019),  Truck Traffic: 4%,  Average Future Daily Traffic: 1,750 (year 2039),  Design Load: H 20,  Features Intersected: MACON RIVER,  Facility Carried by Structure: BRITTON HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 2.789,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  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: 7.3m (24.0ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Fair,  Operating Rating: 48.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 5604,  Location: 0.5 MI SOUTH OF WELCH RD (Lat: 42.028792,  Lng: -83.830936),  Route carried "on" structure: County highway 4685,  Year Built: 1964,  Status: Open,  Structure Length: 1.10m (3.61ft),  Average Daily Traffic: 1,130 (year 2011),  Truck Traffic: 2%,  Average Future Daily Traffic: 2,500 (year 2031),  Design Load: H 15,  Features Intersected: MACON RIVER,  Facility Carried by Structure: BRITTON HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.821,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.6m (34.8ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 58.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 5605,  Location: 0.5 MI NORTH OF WELCH RD (Lat: 42.046903,  Lng: -83.831461),  Route carried "on" structure: County highway 4685,  Year Built: 1989,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 1,130 (year 2011),  Truck Traffic: 2%,  Average Future Daily Traffic: 2,500 (year 2031),  Design Load: HS 20,  Features Intersected: MACON RIVER,  Facility Carried by Structure: BRITTON HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 5.832,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 6.1m (20.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.5m (31.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 64.6 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 46.3 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Other
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Structure Number: 5651,  Location: 0.5 MI E OF BRITTON HWY (Lat: 42.038108,  Lng: -83.822828),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 119 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 200 (year 2031),  Design Load: HS 20,  Features Intersected: MACON RIVER,  Facility Carried by Structure: WELCH RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.917,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.1m (33.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.3m (43.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Good,  Operating Rating: 68.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  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: March 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 5652,  Location: 0.4 MI E OF MILLS-MACON (Lat: 42.052533,  Lng: -83.841864),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 1.09m (3.58ft),  Average Daily Traffic: 97 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 250 (year 2031),  Design Load: HS 20,  Features Intersected: MIDDLE BR OF MACON RIVER,  Facility Carried by Structure: PENNINGTON RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 9.838,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.1m (16.7ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.7m (25.3ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Fair,  Operating Rating: 46.9 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 34.0 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Other
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Structure Number: 5656,  Location: 0.3 MI S OF MILWAUKEE RD (Lat: 42.003928,  Lng: -83.810706),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 69 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 230 (year 2031),  Design Load: HS 20,  Features Intersected: MIDDLE BR OF MACON RIVER,  Facility Carried by Structure: HOAGLAND HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.032,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.1m (33.1ft),  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: 9.4m (30.8ft),  Out-to-Out Width: 9.5m (31.2ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 57.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to 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,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 5687,  Location: NORTH OF DOWNING HWY (Lat: 41.997403,  Lng: -83.790953),  Route carried "on" structure: County highway ,  Year Built: 1985,  Status: Open,  Structure Length: 2.44m (8.01ft),  Average Daily Traffic: 36 (year 2011),  Average Future Daily Traffic: 225 (year 2031),  Design Load: HS 20,  Features Intersected: MIDDLE BR MACON RIVER,  Facility Carried by Structure: SHAW HWY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.048,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 23.8m (78.1ft),  Curb-To-Curb Width: 9.4m (30.8ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Very good,  Channel: Good,  Operating Rating: 60.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 36.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than 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: Bituminous,  Membrane: Other
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Structure Number: 5689,  Location: 0.1 MI W OF HOAGLAND HWY (Lat: 41.980128,  Lng: -83.812300),  Route carried "on" structure: County highway ,  Year Built: 1980,  Status: Open,  Structure Length: 0.61m (2.00ft),  Average Daily Traffic: 57 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 175 (year 2025),  Design Load: HS 20+Mod,  Features Intersected: SCHROEDER BROOK DRAIN,  Facility Carried by Structure: CENTENNIAL RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 9.465,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.4m (21.0ft),  Material/Design: Wood or Timber,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 1.8m (5.9ft)

Condition: Channel: Fair,  Culverts: Poor,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 12 months,  Inspection Date: November 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Gravel,  Deck Protection: Other
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Structure Number: 569,  Location: 0.5 MI W OF N COUNTY LINE (Lat: 41.995078,  Lng: -83.780342),  Route carried "on" structure: County highway ,  Year Built: 1995,  Status: Open,  Structure Length: 1.67m (5.48ft),  Average Daily Traffic: 28 (year 2011),  Average Future Daily Traffic: 110 (year 2031),  Design Load: HS 20,  Features Intersected: MIDDLE BR OF MACON RIVER,  Facility Carried by Structure: KNIFFIN RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 4.159,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.5m (50.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Very good,  Channel: Good,  Operating Rating: 77.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 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: 5691,  Location: 0.1 MI NORTH OF HOLLOWAY (Lat: 41.936550,  Lng: -83.809850),  Route carried "on" structure: County highway ,  Year Built: 2003,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 36 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 100 (year 2031),  Design Load: HS 25 or greater,  Features Intersected: SCHENK BEN KELLY DRAIN,  Facility Carried by Structure: HOAGLAND HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.018,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 10.9m (35.8ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 54.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Superior to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Other
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Structure Number: 5692,  Location: 0.5 MI NORTH OF SUTTON RD (Lat: 41.957522,  Lng: -83.810692),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 1.65m (5.41ft),  Average Daily Traffic: 79 (year 2011),  Average Future Daily Traffic: 180 (year 2031),  Design Load: HS 25 or greater,  Features Intersected: LITTLE RIVER RAISIN,  Facility Carried by Structure: HOAGLAND HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 2.347,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 15.1m (49.5ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.5m (31.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 70.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 42.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than 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: December 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 5693,  Location: 0.2 MI NORTH OF SUTTON RD (Lat: 41.954514,  Lng: -83.800750),  Route carried "on" structure: County highway ,  Year Built: 2007,  Status: Open,  Structure Length: 1.46m (4.79ft),  Average Daily Traffic: 34 (year 2011),  Average Future Daily Traffic: 250 (year 2031),  Design Load: HS 25 or greater,  Features Intersected: LITTLE RIVER RAISIN,  Facility Carried by Structure: DOWNING HWY
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 0.373,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  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: 8.8m (28.9ft),  Out-to-Out Width: 9.5m (31.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 69.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 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: 12681,  Location: 1.0 MI NO OF M 50 (Lat: 41.993458,  Lng: -83.771425),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 1.98m (6.50ft),  Average Daily Traffic: 110 (year 2016),  Truck Traffic: 2%,  Average Future Daily Traffic: 127 (year 2036),  Design Load: HS 20,  Features Intersected: N DR MID BR MACON R,  Facility Carried by Structure: LENAWEE CO LINE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 5.456,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 19.2m (63.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Good,  Operating Rating: 52.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 28.8 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: Superior 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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