US Bridges

State Park Drive over Kawkawlin River

Fair

Bay County, Michigan · 2 MI N of Bay City · Structure no. 000000000000711

Built
2003
22 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
194 ft
3 main spans
Daily traffic
9,810
2003 count
Owner
County
County Highway Agency

About this bridge

State Park Drive over Kawkawlin River is a prestressed concrete box beam or girders - multiple carrying State Park Drive over Kawkawlin River in Bay County, Michigan. It was built in 2003, so it is 22 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 9,810 vehicles a day, roughly 3% of them trucks, projected to reach 14,575 by 2023. The structure is 194 ft (59.1 m) long and 66 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesState Park Drive
CrossesKawkawlin River
Location2 MI N of Bay City
RouteCounty Highway 0
CountyBay County
StateMichigan
Coordinates43.65222, -83.89753
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating47.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length194 ft (59.1 m)
Longest span65 ft (19.8 m)
Deck width66 ft (20.1 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,810 (2003)
Projected traffic14,575 by 2023
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Park Drive over Kawkawlin River built?

It was built in 2003, making it 22 years old in 2025.

What condition is State Park Drive 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 State Park Drive over Kawkawlin River carry?

About 9,810 vehicles per day (2003 count), of which roughly 3% are trucks.

How long is State Park Drive over Kawkawlin River?

The structure is 194 ft (59.1 m) long with a longest span of 65 ft (19.8 m) and a deck 66 ft wide.

Who owns State Park Drive over Kawkawlin River?

It is owned by the County Highway Agency.