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


  • National Bridge Inventory (NBI) Statistics
  • 11Number of bridges
  • 157ft / 47.8mTotal length
  • $24,000Total costs
  • 58,135Total average daily traffic
  • 6,019Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Roscommon
  • No street view available for this location

New bridges in Roscommon, MI - historical statistics
  • New bridges - historical statistics
  • 11930-1939
  • 11960-1969
  • 91970-1979
Average Bridge Daily Traffic in Roscommon, MI
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 28.6%Good
  • 42.9%Satisfactory
  • 28.6%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 71.4%Good
  • 14.3%Satisfactory
  • 14.3%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 28.6%Good
  • 57.1%Satisfactory
  • 14.3%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 66.7%Very good
  • 33.3%Good
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Structure Number: 2068,  Location: 18.0 MI SE OF GRAYLING (Lat: 44.540733,  Lng: -84.550586),  Route carried "on" structure: County highway 2065,  Year Built: 1968,  Status: Open,  Structure Length: 1.86m (6.10ft),  Average Daily Traffic: 286 (year 1985),  Average Future Daily Traffic: 8 (year 2010),  Design Load: HS 20+Mod,  Features Intersected: S BR AU SABLE RIVER,  Facility Carried by Structure: CHASE BRIDGE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.338,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.3m (33.8ft),  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: 17.9m (58.7ft),  Curb-To-Curb Width: 9.0m (29.5ft),  Out-to-Out Width: 9.2m (30.2ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Very good,  Operating Rating: 74.8 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: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.91m (2.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $2,000,  Total Project Cost: $2,000,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 2078,  Location: 10 MI SE OF GRAYLING (Lat: 44.532256,  Lng: -84.589294),  Route carried "on" structure: County highway ,  Year Built: 1979,  Status: Open,  Structure Length: 1.70m (5.58ft),  Average Daily Traffic: 150 (year 1981),  Average Future Daily Traffic: 200 (year 2010),  Design Load: H 15,  Features Intersected: SOUTH BRANCH AU SABLE,  Facility Carried by Structure: STECKERT BRIDGE RD
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 2.609,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 1 degrees,  Material/Design: Wood or Timber,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.7m (31.8ft),  Curb-To-Curb Width: 9.2m (30.2ft),  Out-to-Out Width: 9.7m (31.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 73.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 52.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS) 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.98m (3.22ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Bridge Improvement Cost: $20,000,  Roadway Improvement Cost: $2,000,  Total Project Cost: $22,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 9015,  Location: E LTS OF ROSCOMMON (Lat: 44.501064,  Lng: -84.589628),  Route carried "on" structure: State highway 18,  Year Built: 1935,  Year Reconstructed: 1995,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 5,505 (year 2018),  Truck Traffic: 3%,  Average Future Daily Traffic: 6,331 (year 2038),  Design Load: HS 25 or greater,  Features Intersected: S BR AU SABLE RIVER
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 23.504,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 105,  Subroute: 5),  Owner: State Highway Agency,  Approaching Roadway Width: 10.9m (35.8ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Single/Spread,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 12.9m (42.3ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Fair,  Channel: Very good,  Operating Rating: 68.3 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: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  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: 9025,  Location: 2.0 MI S OF ROSCOMMON (Lat: 44.458219,  Lng: -84.604703),  Route carried "on" structure: State highway 18,  Year Built: 1971,  Status: Open,  Structure Length: 14.77m (48.46ft),  Average Daily Traffic: 2,961 (year 2018),  Truck Traffic: 5%,  Average Future Daily Traffic: 3,405 (year 2038),  Design Load: HS 20,  Features Intersected: I-75
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 18.368,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 105,  Subroute: 5),  Owner: State Highway Agency,  Approaching Roadway Width: 13.6m (44.6ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 7,  Length of Maximum Span: 28.5m (93.5ft),  Curb-To-Curb Width: 14.2m (46.6ft),  Out-to-Out Width: 15.4m (50.5ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 62.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 37.6 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: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $684,000,  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: 9026,  Location: 3.0 MI NW OF M-18 (Lat: 44.493578,  Lng: -84.647783),  Route carried "on" structure: County highway 7292,  Year Built: 1971,  Status: Open,  Structure Length: 6.03m (19.78ft),  Average Daily Traffic: 9,280 (year 2012),  Truck Traffic: 10%,  Average Future Daily Traffic: 10,200 (year 2032),  Design Load: H 20,  Features Intersected: I-75 SB,  Facility Carried by Structure: COUNTY RD 100
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.218,  Lanes on structure: 2,  Lanes under structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.7m (44.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 33.8m (110.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 14.0m (45.9ft),  Out-to-Out Width: 14.7m (48.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 73.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 44.4 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: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 9027,  Location: 3.0 MI NW OF M-18 (Lat: 44.493600,  Lng: -84.645686),  Route carried "on" structure: County highway 7292,  Year Built: 1971,  Status: Open,  Structure Length: 6.28m (20.60ft),  Average Daily Traffic: 9,280 (year 2012),  Truck Traffic: 10%,  Average Future Daily Traffic: 10,200 (year 2032),  Design Load: H 20,  Features Intersected: I-75 NB,  Facility Carried by Structure: COUNTY RD 100
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 1.386,  Lanes on structure: 2,  Lanes under structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 13.7m (44.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 35.0m (114.8ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 14.0m (45.9ft),  Out-to-Out Width: 14.7m (48.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 71.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 42.8 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: Superior to present desirable criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum 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
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Structure Number: 9028,  Location: 3.0 MI W OF ROSCOMMON (Lat: 44.511203,  Lng: -84.660486),  Route carried "on" structure: Business Interstate 75,  Year Built: 1971,  Status: Open,  Structure Length: 15.67m (51.41ft),  Average Daily Traffic: 3,361 (year 2007),  Truck Traffic: 9%,  Average Future Daily Traffic: 4,278 (year 2018),  Design Load: HS 20,  Features Intersected: I-75
Minimum Vertical Clearance: 30.48m (100.00ft),  Kilometerpoint: 3.291,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 320,  Subroute: 92),  Owner: State Highway Agency,  Approaching Roadway Width: 13.7m (44.9ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 7,  Length of Maximum Span: 31.4m (103.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 14.6m (47.9ft),  Out-to-Out Width: 15.3m (50.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 81.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 48.6 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 minimum 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
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Structure Number: 9025,  Location: 2.0 MI S OF ROSCOMMON (Lat: 44.458219,  Lng: -84.604703),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 9,104 (year 2007),  Truck Traffic: 11%,  Features Intersected: I-75,  Facility Carried by Structure: M-18
Minimum Vertical Clearance: 4.93m (16.17ft),  Kilometerpoint: 30.543,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 28.5m (93.5ft)

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Structure Number: 9026,  Location: 3.0 MI NW OF M-18 (Lat: 44.493578,  Lng: -84.647783),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 4,552 (year 2007),  Truck Traffic: 11%,  Features Intersected: I-75 SB,  Facility Carried by Structure: COUNTY RD 100
Minimum Vertical Clearance: 5.00m (16.40ft),  Kilometerpoint: 35.851,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 33.8m (110.9ft)

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Structure Number: 9027,  Location: 3.0 MI NW OF M-18 (Lat: 44.493600,  Lng: -84.645686),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 4,552 (year 2007),  Truck Traffic: 11%,  Features Intersected: I-75 NB,  Facility Carried by Structure: COUNTY RD 100
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 35.680,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 35.0m (114.8ft)

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Structure Number: 9028,  Location: 3.0 MI W OF ROSCOMMON (Lat: 44.511203,  Lng: -84.660486),  Route carried "under" structure: Interstate 75,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 9,104 (year 2007),  Truck Traffic: 17%,  Features Intersected: I-75
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 37.966,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 31.4m (103.0ft)

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