US Bridges

Lrd Marquette ST over Root River

Fair

Racine County, Wisconsin · 0.1M S JCT Sth 38 · Structure no. B51007000000000

Built
1991
34 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
279 ft
3 main spans
Daily traffic
10,600
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Marquette ST over Root River is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Marquette ST over Root River in Racine County, Wisconsin. It was built in 1991, so it is 34 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 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 10,600 vehicles a day, projected to reach 12,720 by 2041. The structure is 279 ft (85 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesLrd Marquette ST
CrossesRoot River
Location0.1M S JCT Sth 38
RouteCity Street 0
CountyRacine County
StateWisconsin
Coordinates42.72889, -87.79272
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length279 ft (85 m)
Longest span92 ft (28 m)
Deck width62 ft (18.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2021)
Projected traffic12,720 by 2041
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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$2.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Marquette ST over Root River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Lrd Marquette ST 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 May 2024.

How much traffic does Lrd Marquette ST over Root River carry?

About 10,600 vehicles per day (2021 count).

How long is Lrd Marquette ST over Root River?

The structure is 279 ft (85 m) long with a longest span of 92 ft (28 m) and a deck 62 ft wide.

Who owns Lrd Marquette ST over Root River?

It is owned by the City or Municipal Highway Agency.