US Bridges

Lrd N 12th Street over Sth 145

Fair

Milwaukee County, Wisconsin · 0.1 M N JCT W Vliet ST · Structure no. B40042900000000

Built
1983
42 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
398 ft
3 main spans
Daily traffic
8,900
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd N 12th Street over Sth 145 is a steel continuous stringer/multi-beam or girder carrying Lrd N 12th Street over Sth 145 in Milwaukee County, Wisconsin. It was built in 1983, so it is 42 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 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 8,900 vehicles a day, projected to reach 8,900 by 2042. The structure is 398 ft (121.3 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesLrd N 12th Street
CrossesSth 145
Location0.1 M N JCT W Vliet ST
RouteCity Street 0
CountyMilwaukee County
StateWisconsin
Coordinates43.0505, -87.92699
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length398 ft (121.3 m)
Longest span148 ft (45.2 m)
Deck width64 ft (19.5 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2022)
Projected traffic8,900 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 Lrd N 12th Street over Sth 145 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Lrd N 12th Street over Sth 145 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 2023.

How much traffic does Lrd N 12th Street over Sth 145 carry?

About 8,900 vehicles per day (2022 count).

How long is Lrd N 12th Street over Sth 145?

The structure is 398 ft (121.3 m) long with a longest span of 148 ft (45.2 m) and a deck 64 ft wide.

Who owns Lrd N 12th Street over Sth 145?

It is owned by the State Highway Agency.