US Bridges

Beaver Road over Kawkawlin River

FairPosted for load

Bay County, Michigan · 1 600 Ft E of Garfield RD · Structure no. 000000000000682

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
2,870
2000 count
Owner
County
County Highway Agency

About this bridge

Beaver Road over Kawkawlin River is a prestressed concrete box beam or girders - multiple carrying Beaver Road over Kawkawlin River in Bay County, Michigan. It was built in 1987, so it is 38 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 5 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 2,870 vehicles a day, roughly 10% of them trucks, projected to reach 4,592 by 2020. The structure is 47 ft (14.3 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBeaver Road
CrossesKawkawlin River
Location1 600 Ft E of Garfield RD
RouteCounty Highway 938
CountyBay County
StateMichigan
Coordinates43.66815, -84.08183
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating33.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,870 (2000)
Projected traffic4,592 by 2020
Trucks10%
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 Beaver Road over Kawkawlin River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Beaver Road over Kawkawlin 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 May 2024.

How much traffic does Beaver Road over Kawkawlin River carry?

About 2,870 vehicles per day (2000 count), of which roughly 10% are trucks.

How long is Beaver Road over Kawkawlin River?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns Beaver Road over Kawkawlin River?

It is owned by the County Highway Agency.