US Bridges

Oak Grove Road over South Branch Rock River

Good

Fond du Lac County, Wisconsin · 0.65 M N. JCT Cth Aw · Structure no. B20024300000000

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
160
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Oak Grove Road over South Branch Rock River is a concrete slab carrying Oak Grove Road over South Branch Rock River in Fond du Lac County, Wisconsin. It was built in 2021, so it is 4 years old, younger than the Wisconsin average of 40.3 years.

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

It carries about 160 vehicles a day, projected to reach 180 by 2041. The structure is 32 ft (9.9 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesOak Grove Road
CrossesSouth Branch Rock River
Location0.65 M N. JCT Cth Aw
CountyFond du Lac County
StateWisconsin
Coordinates43.64217, -88.82033
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.9 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2021)
Projected traffic180 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Oak Grove Road over South Branch Rock River built?

It was built in 2021, making it 4 years old in 2025.

What condition is Oak Grove Road over South Branch Rock 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 November 2023.

How much traffic does Oak Grove Road over South Branch Rock River carry?

About 160 vehicles per day (2021 count).

How long is Oak Grove Road over South Branch Rock River?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns Oak Grove Road over South Branch Rock River?

It is owned by the Town or Township Highway Agency.