US Bridges

Lrd 1170th ST over Oak Grove Creek

Good

Pierce County, Wisconsin · 0.3M S JCT Sth 29 · Structure no. B47009800000000

Built
1989
36 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
44 ft
1 main span
Daily traffic
91
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 1170th ST over Oak Grove Creek is a concrete slab carrying Lrd 1170th ST over Oak Grove Creek in Pierce County, Wisconsin. It was built in 1989, so it is 36 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 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 91 vehicles a day, projected to reach 100 by 2043. The structure is 44 ft (13.4 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLrd 1170th ST
CrossesOak Grove Creek
Location0.3M S JCT Sth 29
RouteCity Street 0
Coordinates44.77638, -92.72108
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2022)
Projected traffic100 by 2043
Trucks0%
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

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 Lrd 1170th ST over Oak Grove Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Lrd 1170th ST over Oak Grove Creek 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 April 2024.

How much traffic does Lrd 1170th ST over Oak Grove Creek carry?

About 91 vehicles per day (2022 count).

How long is Lrd 1170th ST over Oak Grove Creek?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 26 ft wide.

Who owns Lrd 1170th ST over Oak Grove Creek?

It is owned by the Town or Township Highway Agency.