US Bridges

Cth D over Chain Echo Channel

Fair

Oneida County, Wisconsin · 3.6M W JCT Sth 17 · Structure no. P43090800000000

Built
1976
49 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
1,074
2024 count
Owner
County
County Highway Agency

About this bridge

Cth D over Chain Echo Channel is a concrete slab carrying Cth D over Chain Echo Channel in Oneida County, Wisconsin. It was built in 1976, so it is 49 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 1,074 vehicles a day, projected to reach 1,182 by 2043. The structure is 28 ft (8.5 m) long and 33 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

Location

Open in Google Maps
CarriesCth D
CrossesChain Echo Channel
Location3.6M W JCT Sth 17
RouteCounty Highway 0D
CountyOneida County
StateWisconsin
Coordinates45.82908, -89.37111
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,074 (2024)
Projected traffic1,182 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 D over Chain Echo Channel built?

It was built in 1976, making it 49 years old in 2025.

What condition is Cth D over Chain Echo Channel 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 July 2024.

How much traffic does Cth D over Chain Echo Channel carry?

About 1,074 vehicles per day (2024 count).

How long is Cth D over Chain Echo Channel?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.4 m) and a deck 33 ft wide.

Who owns Cth D over Chain Echo Channel?

It is owned by the County Highway Agency.