US Bridges

IH Ramp Sth 19-IH over Cmstpp RR

Fair

Dane County, Wisconsin · At JCT IH 90-94-STH 19 · Structure no. B13029700000000

Built
1971
54 years old, rebuilt 2017
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
169 ft
3 main spans
Daily traffic
7,800
2022 count
Owner
State
State Highway Agency

About this bridge

IH Ramp Sth 19-IH over Cmstpp RR is a prestressed concrete continuous stringer/multi-beam or girder carrying IH Ramp Sth 19-IH over Cmstpp RR in Dane County, Wisconsin. It was built in 1971 and reconstructed in 2017, so it is 54 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 7,800 vehicles a day, projected to reach 9,360 by 2042. The structure is 169 ft (51.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesIH Ramp Sth 19-IH
CrossesCmstpp RR
LocationAt JCT IH 90-94-STH 19
RouteInterstate 39
CountyDane County
StateWisconsin
Coordinates43.19172, -89.34236
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
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 rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.6 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2022)
Projected traffic9,360 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Ramp Sth 19-IH over Cmstpp RR built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2017.

What condition is IH Ramp Sth 19-IH 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 March 2024.

How much traffic does IH Ramp Sth 19-IH over Cmstpp RR carry?

About 7,800 vehicles per day (2022 count).

How long is IH Ramp Sth 19-IH over Cmstpp RR?

The structure is 169 ft (51.6 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns IH Ramp Sth 19-IH over Cmstpp RR?

It is owned by the State Highway Agency.