US Bridges

Cth Aa over Br Silver Creek

Fair

Monroe County, Wisconsin · 0.2M S JCT Cth a · Structure no. P41095700000000

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
283
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Aa over Br Silver Creek is a wood or timber slab carrying Cth Aa over Br Silver Creek in Monroe County, Wisconsin. It was built in 1981, so it is 44 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 283 vehicles a day, projected to reach 311 by 2043. The structure is 26 ft (7.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCth Aa
CrossesBr Silver Creek
Location0.2M S JCT Cth a
RouteCounty Highway 0AA
CountyMonroe County
StateWisconsin
Coordinates43.9286, -90.68483
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic283 (2022)
Projected traffic311 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Aa over Br Silver Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Cth Aa over Br Silver 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 Aa over Br Silver Creek carry?

About 283 vehicles per day (2022 count).

How long is Cth Aa over Br Silver Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns Cth Aa over Br Silver Creek?

It is owned by the County Highway Agency.