US Bridges

Adams ST over Black River Tributary

Fair

Ottawa County, Michigan · 0.44 Miles E of Holland · Structure no. 000000000008804

Built
1973
52 years old, rebuilt 2002
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
16,240
2020 count
Owner
County
County Highway Agency

About this bridge

Adams ST over Black River Tributary is a prestressed concrete stringer/multi-beam or girder carrying Adams ST over Black River Tributary in Ottawa County, Michigan. It was built in 1973 and reconstructed in 2002, so it is 52 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 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 16,240 vehicles a day, roughly 8% of them trucks, projected to reach 29,330 by 2040. The structure is 50 ft (15.2 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAdams ST
CrossesBlack River Tributary
Location0.44 Miles E of Holland
RouteCounty Highway 7004
Coordinates42.78342, -86.03821
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating52.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.8 m)
Deck width74 ft (22.5 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,240 (2020)
Projected traffic29,330 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Adams ST over Black River Tributary built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2002.

What condition is Adams ST over Black River Tributary 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 Adams ST over Black River Tributary carry?

About 16,240 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Adams ST over Black River Tributary?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.8 m) and a deck 74 ft wide.

Who owns Adams ST over Black River Tributary?

It is owned by the County Highway Agency.