US Bridges

Sth 39-MAIN ST over Br E Pecatonica River

Fair

Iowa County, Wisconsin · 0.4M E JCT Cth X · Structure no. B25056700000000

Built
1939
86 years old, rebuilt 1991
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
2,000
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 39-MAIN ST over Br E Pecatonica River is a steel stringer/multi-beam or girder carrying Sth 39-MAIN ST over Br E Pecatonica River in Iowa County, Wisconsin. It was built in 1939 and reconstructed in 1991, so it is 86 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,000 vehicles a day, roughly 4% of them trucks, projected to reach 2,290 by 2042. The structure is 61 ft (18.6 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSth 39-MAIN ST
CrossesBr E Pecatonica River
Location0.4M E JCT Cth X
RouteState Highway 39
CountyIowa County
StateWisconsin
Coordinates42.91382, -90.26751
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 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 rating55.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length61 ft (18.6 m)
Longest span56 ft (17 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic2,290 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 39-MAIN ST over Br E Pecatonica River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1991.

What condition is Sth 39-MAIN ST over Br E Pecatonica River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Sth 39-MAIN ST over Br E Pecatonica River carry?

About 2,000 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Sth 39-MAIN ST over Br E Pecatonica River?

The structure is 61 ft (18.6 m) long with a longest span of 56 ft (17 m) and a deck 34 ft wide.

Who owns Sth 39-MAIN ST over Br E Pecatonica River?

It is owned by the State Highway Agency.