US Bridges

Lrd Twin Grove RD over Twin Grove Branch

Fair

Green County, Wisconsin · 0.7M S JCT Cth Ks · Structure no. P23091700000000

Built
1950
75 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
211
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Twin Grove RD over Twin Grove Branch is a concrete continuous culvert carrying Lrd Twin Grove RD over Twin Grove Branch in Green County, Wisconsin. It was built in 1950, so it is 75 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 211 vehicles a day, projected to reach 232 by 2043. The structure is 23 ft (7.1 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesLrd Twin Grove RD
CrossesTwin Grove Branch
Location0.7M S JCT Cth Ks
RouteCity Street 0
CountyGreen County
StateWisconsin
Coordinates42.5571, -89.54342
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
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 rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length23 ft (7.1 m)
Longest span10 ft (3.2 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic211 (2022)
Projected traffic232 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Twin Grove RD over Twin Grove Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is Lrd Twin Grove RD over Twin Grove Branch 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 June 2024.

How much traffic does Lrd Twin Grove RD over Twin Grove Branch carry?

About 211 vehicles per day (2022 count).

How long is Lrd Twin Grove RD over Twin Grove Branch?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3.2 m) and a deck 29 ft wide.

Who owns Lrd Twin Grove RD over Twin Grove Branch?

It is owned by the Town or Township Highway Agency.