US Bridges

Pine River Road over Pine River

PoorPosted for load

Midland County, Michigan · 0.15 MI W of Woodcock RD · Structure no. 000000000006935

Built
1970
55 years old
Condition
Poor
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
2,161
2022 count
Owner
County
County Highway Agency

About this bridge

Pine River Road over Pine River is a prestressed concrete box beam or girders - multiple carrying Pine River Road over Pine River in Midland County, Michigan. It was built in 1970, so it is 55 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,161 vehicles a day, roughly 5% of them trucks, projected to reach 3,211 by 2042. The structure is 180 ft (54.8 m) long and 36 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesPine River Road
CrossesPine River
Location0.15 MI W of Woodcock RD
RouteCounty Highway 5636
Coordinates43.59755, -84.30283
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating24.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length180 ft (54.8 m)
Longest span60 ft (18.2 m)
Deck width36 ft (11.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,161 (2022)
Projected traffic3,211 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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 Pine River Road over Pine River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Pine River Road over Pine River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Pine River Road over Pine River carry?

About 2,161 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Pine River Road over Pine River?

The structure is 180 ft (54.8 m) long with a longest span of 60 ft (18.2 m) and a deck 36 ft wide.

Who owns Pine River Road over Pine River?

It is owned by the County Highway Agency.