US Bridges

Cth US 76th St(sb) over Root River

Fair

Milwaukee County, Wisconsin · 0.4M N JCT Cth K · Structure no. B40057600000000

Built
1993
32 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
8,750
2021 count
Owner
County
County Highway Agency

About this bridge

Cth US 76th St(sb) over Root River is a concrete continuous slab carrying Cth US 76th St(sb) over Root River in Milwaukee County, Wisconsin. It was built in 1993, so it is 32 years old, younger 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 6 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 8,750 vehicles a day, projected to reach 10,500 by 2041. The structure is 81 ft (24.8 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth US 76th St(sb)
CrossesRoot River
Location0.4M N JCT Cth K
RouteCounty Highway 0U
CountyMilwaukee County
StateWisconsin
Coordinates42.92797, -88.00909
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating52.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.8 m)
Longest span31 ft (9.4 m)
Deck width55 ft (16.8 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,750 (2021)
Projected traffic10,500 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth US 76th St(sb) over Root River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Cth US 76th St(sb) over Root River 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 April 2024.

How much traffic does Cth US 76th St(sb) over Root River carry?

About 8,750 vehicles per day (2021 count).

How long is Cth US 76th St(sb) over Root River?

The structure is 81 ft (24.8 m) long with a longest span of 31 ft (9.4 m) and a deck 55 ft wide.

Who owns Cth US 76th St(sb) over Root River?

It is owned by the County Highway Agency.