US Bridges

Lrd South Main Str over Spring Brook Creek

Good

Rock County, Wisconsin · 0.6M S JCT Sth 11 · Structure no. B53016500000000

Built
1990
35 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
72 ft
2 main spans
Daily traffic
3,900
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd South Main Str over Spring Brook Creek is a concrete continuous slab carrying Lrd South Main Str over Spring Brook Creek in Rock County, Wisconsin. It was built in 1990, so it is 35 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 3,900 vehicles a day, projected to reach 3,382 by 2043. The structure is 72 ft (21.9 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLrd South Main Str
CrossesSpring Brook Creek
Location0.6M S JCT Sth 11
RouteCity Street 0
Coordinates42.66832, -89.00659
Functional classUrban Minor Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.8 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span35 ft (10.7 m)
Deck width40 ft (12.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2022)
Projected traffic3,382 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Lrd South Main Str over Spring Brook Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Lrd South Main Str over Spring Brook 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 Lrd South Main Str over Spring Brook Creek carry?

About 3,900 vehicles per day (2022 count).

How long is Lrd South Main Str over Spring Brook Creek?

The structure is 72 ft (21.9 m) long with a longest span of 35 ft (10.7 m) and a deck 40 ft wide.

Who owns Lrd South Main Str over Spring Brook Creek?

It is owned by the City or Municipal Highway Agency.