US Bridges

Sth 71-S Railroad over Davis Creek

Poor

Monroe County, Wisconsin · 3.3M E JCT Cth V · Structure no. B41002300000000

Built
1932
93 years old, rebuilt 1956
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
2,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 71-S Railroad over Davis Creek is a steel stringer/multi-beam or girder carrying Sth 71-S Railroad over Davis Creek in Monroe County, Wisconsin. It was built in 1932 and reconstructed in 1956, so it is 93 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,600 vehicles a day, roughly 8% of them trucks, projected to reach 3,180 by 2043. The structure is 31 ft (9.6 m) long and 38 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesSth 71-S Railroad
CrossesDavis Creek
Location3.3M E JCT Cth V
RouteState Highway 71
Coordinates43.7954, -90.37366
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating57.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.6 m)
Longest span30 ft (9.1 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2022)
Projected traffic3,180 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$263,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 71-S Railroad over Davis Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1956.

What condition is Sth 71-S Railroad over Davis Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Sth 71-S Railroad over Davis Creek carry?

About 2,600 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth 71-S Railroad over Davis Creek?

The structure is 31 ft (9.6 m) long with a longest span of 30 ft (9.1 m) and a deck 38 ft wide.

Who owns Sth 71-S Railroad over Davis Creek?

It is owned by the State Highway Agency.