US Bridges

Lrd 18th ST over Lrd Spring ST Connector

Fair

Manitowoc County, Wisconsin · 0.7M S JCT Ush 10 · Structure no. B36010600000000

Built
1978
47 years old, rebuilt 2010
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
655 ft
10 main spans
Daily traffic
14,600
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd 18th ST over Lrd Spring ST Connector is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd 18th ST over Lrd Spring ST Connector in Manitowoc County, Wisconsin. It was built in 1978 and reconstructed in 2010, so it is 47 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 14,600 vehicles a day, projected to reach 14,505 by 2043. The structure is 655 ft (199.6 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesLrd 18th ST
CrossesLrd Spring ST Connector
Location0.7M S JCT Ush 10
RouteCity Street 0
CountyManitowoc County
StateWisconsin
Coordinates44.09927, -87.67197
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length655 ft (199.6 m)
Longest span65 ft (19.8 m)
Deck width67 ft (20.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,600 (2024)
Projected traffic14,505 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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$4.9 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd 18th ST over Lrd Spring ST Connector built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2010.

What condition is Lrd 18th ST over Lrd Spring ST Connector 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 September 2024.

How much traffic does Lrd 18th ST over Lrd Spring ST Connector carry?

About 14,600 vehicles per day (2024 count).

How long is Lrd 18th ST over Lrd Spring ST Connector?

The structure is 655 ft (199.6 m) long with a longest span of 65 ft (19.8 m) and a deck 67 ft wide.

Who owns Lrd 18th ST over Lrd Spring ST Connector?

It is owned by the City or Municipal Highway Agency.