US Bridges

US-131 Br NB over Ravine Road

Fair

Kalamazoo County, Michigan · 1.2 MI E of US-131 · Structure no. 000000000004613

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
2,811
2007 count
Owner
State
State Highway Agency

About this bridge

US-131 Br NB over Ravine Road is a prestressed concrete stringer/multi-beam or girder carrying US-131 Br NB over Ravine Road in Kalamazoo County, Michigan. It was built in 1963, so it is 62 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 2,811 vehicles a day, roughly 9% of them trucks, projected to reach 3,630 by 2018. The structure is 115 ft (35 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-131 Br NB
CrossesRavine Road
Location1.2 MI E of US-131
RouteU.S. Route 131
Coordinates42.32651, -85.64931
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35 m)
Longest span43 ft (13.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,811 (2007)
Projected traffic3,630 by 2018
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-131 Br NB over Ravine Road built?

It was built in 1963, making it 62 years old in 2025.

What condition is US-131 Br NB over Ravine Road 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 2024.

How much traffic does US-131 Br NB over Ravine Road carry?

About 2,811 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is US-131 Br NB over Ravine Road?

The structure is 115 ft (35 m) long with a longest span of 43 ft (13.1 m) and a deck 43 ft wide.

Who owns US-131 Br NB over Ravine Road?

It is owned by the State Highway Agency.