US Bridges

US-131 over Conrail

Fair

Kent County, Michigan · 6.3 MI S of Grand Rapids · Structure no. 000000000004944

Built
2000
25 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
226 ft
3 main spans
Daily traffic
61,220
2007 count
Owner
State
State Highway Agency

About this bridge

US-131 over Conrail is a prestressed concrete box beam or girders - multiple carrying US-131 over Conrail in Kent County, Michigan. It was built in 2000, so it is 25 years old, younger 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 6 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 61,220 vehicles a day, roughly 10% of them trucks, projected to reach 67,917 by 2018. The structure is 226 ft (68.9 m) long and 144 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-131
CrossesConrail
Location6.3 MI S of Grand Rapids
RouteU.S. Route 131
Coordinates42.83202, -85.67491
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80.4 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length226 ft (68.9 m)
Longest span77 ft (23.5 m)
Deck width144 ft (43.8 m)
Roadway width137 ft (41.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,220 (2007)
Projected traffic67,917 by 2018
Trucks10%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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-131 over Conrail built?

It was built in 2000, making it 25 years old in 2025.

What condition is US-131 over Conrail 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 September 2024.

How much traffic does US-131 over Conrail carry?

About 61,220 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is US-131 over Conrail?

The structure is 226 ft (68.9 m) long with a longest span of 77 ft (23.5 m) and a deck 144 ft wide.

Who owns US-131 over Conrail?

It is owned by the State Highway Agency.