US Bridges

Cole Road over Shiawassee River

Good

Genesee County, Michigan · 0.40 MI NE of Seymour RD · Structure no. 000000000002765

Built
1937
88 years old, rebuilt 2015
Condition
Good
inspected September 2023
Type
Slab
Wood or Timber
Length
36 ft
1 main span
Daily traffic
108
2009 count
Owner
County
County Highway Agency

About this bridge

Cole Road over Shiawassee River is a wood or timber slab carrying Cole Road over Shiawassee River in Genesee County, Michigan. It was built in 1937 and reconstructed in 2015, so it is 88 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 108 vehicles a day, roughly 3% of them trucks, projected to reach 195 by 2029. The structure is 36 ft (11 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesCole Road
CrossesShiawassee River
Location0.40 MI NE of Seymour RD
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates42.8117, -83.83573
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.4 US tons
Inventory rating78.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span34 ft (10.3 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108 (2009)
Projected traffic195 by 2029
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cole Road over Shiawassee River built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2015.

What condition is Cole Road over Shiawassee River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Cole Road over Shiawassee River carry?

About 108 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Cole Road over Shiawassee River?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.3 m) and a deck 34 ft wide.

Who owns Cole Road over Shiawassee River?

It is owned by the County Highway Agency.