US Bridges

2nd Street over Gun River

FairPosted for load

Allegan County, Michigan · Approx 0.10 MI S of 112th · Structure no. 000000000000207

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
296
2003 count
Owner
County
County Highway Agency

About this bridge

2nd Street over Gun River is a prestressed concrete box beam or girders - multiple carrying 2nd Street over Gun River in Allegan County, Michigan. It was built in 1981, so it is 44 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. Its operating status is: posted for load restriction.

It carries about 296 vehicles a day, roughly 7% of them trucks, projected to reach 592 by 2023. The structure is 56 ft (17 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries2nd Street
CrossesGun River
LocationApprox 0.10 MI S of 112th
RouteCounty Highway 393
Coordinates42.50699, -85.56284
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to 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 rating50.4 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length56 ft (17 m)
Longest span56 ft (17 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic296 (2003)
Projected traffic592 by 2023
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
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 2nd Street over Gun River built?

It was built in 1981, making it 44 years old in 2025.

What condition is 2nd Street over Gun River 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 2023.

How much traffic does 2nd Street over Gun River carry?

About 296 vehicles per day (2003 count), of which roughly 7% are trucks.

How long is 2nd Street over Gun River?

The structure is 56 ft (17 m) long with a longest span of 56 ft (17 m) and a deck 34 ft wide.

Who owns 2nd Street over Gun River?

It is owned by the County Highway Agency.