US Bridges

IH 43 SB over Cmstpp RR

Fair

Walworth County, Wisconsin · 2.0 MI S JCT Ush 14 · Structure no. B64013500000000

Built
1976
49 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
154 ft
3 main spans
Daily traffic
9,400
2022 count
Owner
State
State Highway Agency

About this bridge

IH 43 SB over Cmstpp RR is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 43 SB over Cmstpp RR in Walworth County, Wisconsin. It was built in 1976, so it is 49 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 9,400 vehicles a day, roughly 12% of them trucks, projected to reach 11,280 by 2042. The structure is 154 ft (46.8 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIH 43 SB
CrossesCmstpp RR
Location2.0 MI S JCT Ush 14
RouteInterstate 43
CountyWalworth County
StateWisconsin
Coordinates42.58861, -88.75411
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.8 m)
Longest span58 ft (17.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,400 (2022)
Projected traffic11,280 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 43 SB over Cmstpp RR built?

It was built in 1976, making it 49 years old in 2025.

What condition is IH 43 SB over Cmstpp RR 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 August 2023.

How much traffic does IH 43 SB over Cmstpp RR carry?

About 9,400 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is IH 43 SB over Cmstpp RR?

The structure is 154 ft (46.8 m) long with a longest span of 58 ft (17.7 m) and a deck 43 ft wide.

Who owns IH 43 SB over Cmstpp RR?

It is owned by the State Highway Agency.