US Bridges

County Road G 3 over Rapid River

Good

Delta County, Michigan · 8 M N 2 M W Rapid River · Structure no. 000000000002165

Built
1986
39 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
58
2021 count
Owner
County
County Highway Agency

About this bridge

County Road G 3 over Rapid River is a prestressed concrete box beam or girders - multiple carrying County Road G 3 over Rapid River in Delta County, Michigan. It was built in 1986, so it is 39 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 58 vehicles a day, roughly 20% of them trucks, projected to reach 64 by 2041. The structure is 76 ft (23.1 m) long and 34 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesCounty Road G 3
CrossesRapid River
Location8 M N 2 M W Rapid River
RouteCounty Highway 0
Coordinates46.043, -86.99782
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.6 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length76 ft (23.1 m)
Longest span72 ft (21.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2021)
Projected traffic64 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 County Road G 3 over Rapid River built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road G 3 over Rapid River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does County Road G 3 over Rapid River carry?

About 58 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is County Road G 3 over Rapid River?

The structure is 76 ft (23.1 m) long with a longest span of 72 ft (21.9 m) and a deck 34 ft wide.

Who owns County Road G 3 over Rapid River?

It is owned by the County Highway Agency.