US Bridges

Sth 71 over Spencer Creek

Good

Monroe County, Wisconsin · 2.6M E JCT Sth 162 · Structure no. B41024800000000

Built
2003
22 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
49 ft
1 main span
Daily traffic
900
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 71 over Spencer Creek is a concrete slab carrying Sth 71 over Spencer Creek in Monroe County, Wisconsin. It was built in 2003, so it is 22 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 900 vehicles a day, roughly 6% of them trucks, projected to reach 1,080 by 2041. The structure is 49 ft (14.8 m) long and 32 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesSth 71
CrossesSpencer Creek
Location2.6M E JCT Sth 162
RouteState Highway 71
Coordinates44.06111, -90.8665
Functional classRural Major Collector

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 inspectionAugust 2024
Inspection intervalevery 48 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 length49 ft (14.8 m)
Longest span46 ft (14 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2021)
Projected traffic1,080 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 71 over Spencer Creek built?

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

What condition is Sth 71 over Spencer 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 August 2024.

How much traffic does Sth 71 over Spencer Creek carry?

About 900 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Sth 71 over Spencer Creek?

The structure is 49 ft (14.8 m) long with a longest span of 46 ft (14 m) and a deck 32 ft wide.

Who owns Sth 71 over Spencer Creek?

It is owned by the State Highway Agency.