US Bridges

IH 43 NB over Cmstpp RR

Good

Walworth County, Wisconsin · 0.2 MI N JCT Cth X · Structure no. B64012400000000

Built
1975
50 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
156 ft
3 main spans
Daily traffic
10,850
2022 count
Owner
State
State Highway Agency

About this bridge

IH 43 NB over Cmstpp RR is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 43 NB over Cmstpp RR in Walworth County, Wisconsin. It was built in 1975, so it is 50 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,850 vehicles a day, roughly 12% of them trucks, projected to reach 13,020 by 2042. The structure is 156 ft (47.4 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIH 43 NB
CrossesCmstpp RR
Location0.2 MI N JCT Cth X
RouteInterstate 43
CountyWalworth County
StateWisconsin
Coordinates42.61939, -88.66575
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 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 rating52.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.4 m)
Longest span52 ft (16 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,850 (2022)
Projected traffic13,020 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 NB over Cmstpp RR built?

It was built in 1975, making it 50 years old in 2025.

What condition is IH 43 NB over Cmstpp RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

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

About 10,850 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is IH 43 NB over Cmstpp RR?

The structure is 156 ft (47.4 m) long with a longest span of 52 ft (16 m) and a deck 44 ft wide.

Who owns IH 43 NB over Cmstpp RR?

It is owned by the State Highway Agency.