US Bridges

Lrd Grays Mill RD over Grant River

Good

Grant County, Wisconsin · 0.4M S JCT Cth a · Structure no. P22025400000000

Built
1977
48 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
78
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Grays Mill RD over Grant River is a prestressed concrete stringer/multi-beam or girder carrying Lrd Grays Mill RD over Grant River in Grant County, Wisconsin. It was built in 1977, so it is 48 years old, older 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 78 vehicles a day, projected to reach 85 by 2042. The structure is 87 ft (26.5 m) long and 28 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesLrd Grays Mill RD
CrossesGrant River
Location0.4M S JCT Cth a
RouteCity Street 0
Coordinates42.85625, -90.78036
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length87 ft (26.5 m)
Longest span85 ft (25.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2022)
Projected traffic85 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 Grays Mill RD over Grant River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Lrd Grays Mill RD over Grant River 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 September 2023.

How much traffic does Lrd Grays Mill RD over Grant River carry?

About 78 vehicles per day (2022 count).

How long is Lrd Grays Mill RD over Grant River?

The structure is 87 ft (26.5 m) long with a longest span of 85 ft (25.9 m) and a deck 28 ft wide.

Who owns Lrd Grays Mill RD over Grant River?

It is owned by the Town or Township Highway Agency.