US Bridges

Cth S over Riley School Creek

Fair

Green County, Wisconsin · 1.3M S JCT Cth Ks · Structure no. B23007300000000

Built
1988
37 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
790
2022 count
Owner
County
County Highway Agency

About this bridge

Cth S over Riley School Creek is a concrete culvert carrying Cth S over Riley School Creek in Green County, Wisconsin. It was built in 1988, so it is 37 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 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 790 vehicles a day, projected to reach 881 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth S
CrossesRiley School Creek
Location1.3M S JCT Cth Ks
RouteCounty Highway 0S
CountyGreen County
StateWisconsin
Coordinates42.56745, -89.50388
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2022)
Projected traffic881 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth S over Riley School Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Cth S over Riley School Creek 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 June 2024.

How much traffic does Cth S over Riley School Creek carry?

About 790 vehicles per day (2022 count).

How long is Cth S over Riley School Creek?

The structure is 31 ft (9.4 m) long with a longest span of 11 ft (3.5 m).

Who owns Cth S over Riley School Creek?

It is owned by the County Highway Agency.