US Bridges

72 Nd Ave over S Br Pentwater River

Fair

Oceana County, Michigan · 0.4 MI N of Harrison RD · Structure no. 000000000008394

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
1,900
2004 count
Owner
County
County Highway Agency

About this bridge

72 Nd Ave over S Br Pentwater River is a prestressed concrete box beam or girders - multiple carrying 72 Nd Ave over S Br Pentwater River in Oceana County, Michigan. It was built in 1988, so it is 37 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 1,900 vehicles a day, roughly 5% of them trucks, projected to reach 2,100 by 2024. The structure is 64 ft (19.5 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries72 Nd Ave
CrossesS Br Pentwater River
Location0.4 MI N of Harrison RD
RouteCounty Highway 0
Coordinates43.72428, -86.37677
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating64.6 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span62 ft (18.9 m)
Deck width37 ft (11.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2004)
Projected traffic2,100 by 2024
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 72 Nd Ave over S Br Pentwater River built?

It was built in 1988, making it 37 years old in 2025.

What condition is 72 Nd Ave over S Br Pentwater 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 August 2024.

How much traffic does 72 Nd Ave over S Br Pentwater River carry?

About 1,900 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is 72 Nd Ave over S Br Pentwater River?

The structure is 64 ft (19.5 m) long with a longest span of 62 ft (18.9 m) and a deck 37 ft wide.

Who owns 72 Nd Ave over S Br Pentwater River?

It is owned by the County Highway Agency.