US Bridges

Lrd Cth W (maple G over IH 39 Nb/Sb

Good

Dane County, Wisconsin · 1.4M W JCT Sth 73 · Structure no. B13070600000000

Built
2016
9 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
264 ft
2 main spans
Daily traffic
200
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd Cth W (maple G over IH 39 Nb/Sb is a prestressed concrete stringer/multi-beam or girder carrying Lrd Cth W (maple G over IH 39 Nb/Sb in Dane County, Wisconsin. It was built in 2016, so it is 9 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 200 vehicles a day, projected to reach 250 by 2040. The structure is 264 ft (80.4 m) long and 39 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesLrd Cth W (maple G
CrossesIH 39 Nb/Sb
Location1.4M W JCT Sth 73
RouteCity Street 0
CountyDane County
StateWisconsin
Coordinates42.9134, -89.0856
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.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length264 ft (80.4 m)
Longest span130 ft (39.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic250 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$978,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd Cth W (maple G over IH 39 Nb/Sb built?

It was built in 2016, making it 9 years old in 2025.

What condition is Lrd Cth W (maple G over IH 39 Nb/Sb 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 2024.

How much traffic does Lrd Cth W (maple G over IH 39 Nb/Sb carry?

About 200 vehicles per day (2022 count).

How long is Lrd Cth W (maple G over IH 39 Nb/Sb?

The structure is 264 ft (80.4 m) long with a longest span of 130 ft (39.6 m) and a deck 39 ft wide.

Who owns Lrd Cth W (maple G over IH 39 Nb/Sb?

It is owned by the State Highway Agency.