US Bridges

IH 41 NB/43 SB/894 over Lrd S 51st ST

Fair

Milwaukee County, Wisconsin · 0.4M S JCT Sth 36 to N · Structure no. B40019700000000

Built
1966
59 years old, rebuilt 1994
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
145 ft
3 main spans
Daily traffic
64,000
2021 count
Owner
State
State Highway Agency

About this bridge

IH 41 NB/43 SB/894 over Lrd S 51st ST is a steel continuous stringer/multi-beam or girder carrying IH 41 NB/43 SB/894 over Lrd S 51st ST in Milwaukee County, Wisconsin. It was built in 1966 and reconstructed in 1994, so it is 59 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 64,000 vehicles a day, roughly 1% of them trucks, projected to reach 76,800 by 2041. The structure is 145 ft (44.1 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 41 NB/43 SB/894
CrossesLrd S 51st ST
Location0.4M S JCT Sth 36 to N
RouteInterstate 41
Coordinates42.9628, -87.9782
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 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
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating30.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length145 ft (44.1 m)
Longest span62 ft (18.8 m)
Deck width62 ft (18.8 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,000 (2021)
Projected traffic76,800 by 2041
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 41 NB/43 SB/894 over Lrd S 51st ST built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1994.

What condition is IH 41 NB/43 SB/894 over Lrd S 51st ST 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 IH 41 NB/43 SB/894 over Lrd S 51st ST carry?

About 64,000 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is IH 41 NB/43 SB/894 over Lrd S 51st ST?

The structure is 145 ft (44.1 m) long with a longest span of 62 ft (18.8 m) and a deck 62 ft wide.

Who owns IH 41 NB/43 SB/894 over Lrd S 51st ST?

It is owned by the State Highway Agency.