US Bridges

US-10 over US-10 WB Ramp

Fair

Isabella County, Michigan · 1.4 MI SE of Clare Col · Structure no. 000000000004272

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
3 main spans
Daily traffic
5,688
2007 count
Owner
State
State Highway Agency

About this bridge

US-10 over US-10 WB Ramp is a steel stringer/multi-beam or girder carrying US-10 over US-10 WB Ramp in Isabella County, Michigan. It was built in 1962, so it is 63 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,688 vehicles a day, roughly 19% of them trucks, projected to reach 8,704 by 2018. The structure is 151 ft (46 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-10
CrossesUS-10 WB Ramp
Location1.4 MI SE of Clare Col
RouteU.S. Route 10
Coordinates43.80854, -84.72217
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length151 ft (46 m)
Longest span53 ft (16.1 m)
Deck width47 ft (14.3 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,688 (2007)
Projected traffic8,704 by 2018
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-10 over US-10 WB Ramp built?

It was built in 1962, making it 63 years old in 2025.

What condition is US-10 over US-10 WB Ramp in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does US-10 over US-10 WB Ramp carry?

About 5,688 vehicles per day (2007 count), of which roughly 19% are trucks.

How long is US-10 over US-10 WB Ramp?

The structure is 151 ft (46 m) long with a longest span of 53 ft (16.1 m) and a deck 47 ft wide.

Who owns US-10 over US-10 WB Ramp?

It is owned by the State Highway Agency.