US Bridges

IH 39 NB/90 WB over Lrd Colley RD

Good

Rock County, Wisconsin · 1.1M W Ill State Line · Structure no. B53021700000000

Built
2004
21 years old, rebuilt 2019
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
25,600
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 NB/90 WB over Lrd Colley RD is a steel continuous stringer/multi-beam or girder carrying IH 39 NB/90 WB over Lrd Colley RD in Rock County, Wisconsin. It was built in 2004 and reconstructed in 2019, so it is 21 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 25,600 vehicles a day, projected to reach 38,550 by 2040. The structure is 151 ft (46 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 39 NB/90 WB
CrossesLrd Colley RD
Location1.1M W Ill State Line
RouteInterstate 39
Coordinates42.5102, -88.98139
Functional classRural Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.5 US tons
Inventory rating50 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span80 ft (24.4 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,600 (2022)
Projected traffic38,550 by 2040
Trucks0%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 39 NB/90 WB over Lrd Colley RD built?

It was built in 2004, making it 21 years old in 2025. It was reconstructed in 2019.

What condition is IH 39 NB/90 WB over Lrd Colley RD 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 October 2024.

How much traffic does IH 39 NB/90 WB over Lrd Colley RD carry?

About 25,600 vehicles per day (2022 count).

How long is IH 39 NB/90 WB over Lrd Colley RD?

The structure is 151 ft (46 m) long with a longest span of 80 ft (24.4 m) and a deck 75 ft wide.

Who owns IH 39 NB/90 WB over Lrd Colley RD?

It is owned by the State Highway Agency.