US Bridges

Sth 16 over Cmstpp RR

Fair

Columbia County, Wisconsin · 0.8M E JCT Sth 127 · Structure no. B11008900000000

Built
1977
48 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
306 ft
3 main spans
Daily traffic
6,300
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 16 over Cmstpp RR is a steel continuous stringer/multi-beam or girder carrying Sth 16 over Cmstpp RR in Columbia County, Wisconsin. It was built in 1977, so it is 48 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 6,300 vehicles a day, roughly 3% of them trucks, projected to reach 7,560 by 2041. The structure is 306 ft (93.3 m) long and 60 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesSth 16
CrossesCmstpp RR
Location0.8M E JCT Sth 127
RouteState Highway 16
CountyColumbia County
StateWisconsin
Coordinates43.55239, -89.48466
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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 rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length306 ft (93.3 m)
Longest span125 ft (38.1 m)
Deck width60 ft (18.4 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2021)
Projected traffic7,560 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 Sth 16 over Cmstpp RR built?

It was built in 1977, making it 48 years old in 2025.

What condition is Sth 16 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 May 2023.

How much traffic does Sth 16 over Cmstpp RR carry?

About 6,300 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Sth 16 over Cmstpp RR?

The structure is 306 ft (93.3 m) long with a longest span of 125 ft (38.1 m) and a deck 60 ft wide.

Who owns Sth 16 over Cmstpp RR?

It is owned by the State Highway Agency.