US Bridges

Lrd S 43rd ST over Kinnickinnick River

Poor

Milwaukee County, Wisconsin · 0.4M N JCT Sth 24 · Structure no. B40056100000000

Built
1987
38 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
19,025
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd S 43rd ST over Kinnickinnick River is a concrete slab carrying Lrd S 43rd ST over Kinnickinnick River in Milwaukee County, Wisconsin. It was built in 1987, so it is 38 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 19,025 vehicles a day, projected to reach 20,739 by 2043. The structure is 25 ft (7.6 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLrd S 43rd ST
CrossesKinnickinnick River
Location0.4M N JCT Sth 24
RouteCity Street 0
Coordinates42.99709, -87.96768
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.2 m)
Deck width64 ft (19.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,025 (2023)
Projected traffic20,739 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$290,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd S 43rd ST over Kinnickinnick River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lrd S 43rd ST over Kinnickinnick River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Lrd S 43rd ST over Kinnickinnick River carry?

About 19,025 vehicles per day (2023 count).

How long is Lrd S 43rd ST over Kinnickinnick River?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.2 m) and a deck 64 ft wide.

Who owns Lrd S 43rd ST over Kinnickinnick River?

It is owned by the City or Municipal Highway Agency.