US Bridges

29th TER(23.5-U.7) over Black Vermillion

FairPosted for load

Marshall County, Kansas · 0.5S 1.5W of Vliets · Structure no. 000580923503407

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
128 ft
1 main span
Daily traffic
10
2007 count
Owner
County
County Highway Agency

About this bridge

29th TER(23.5-U.7) over Black Vermillion is a steel stringer/multi-beam or girder carrying 29th TER(23.5-U.7) over Black Vermillion in Marshall County, Kansas. It was built in 1986, so it is 39 years old, younger than the Kansas average of 52.8 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2043. The structure is 128 ft (39 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries29th TER(23.5-U.7)
CrossesBlack Vermillion
Location0.5S 1.5W of Vliets
RouteCounty Highway 0
CountyMarshall County
StateKansas
Coordinates39.70113, -96.36084
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating33.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1 (+2 approach)
Design loadH 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2007)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$260,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 29th TER(23.5-U.7) over Black Vermillion built?

It was built in 1986, making it 39 years old in 2025.

What condition is 29th TER(23.5-U.7) over Black Vermillion 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 29th TER(23.5-U.7) over Black Vermillion carry?

About 10 vehicles per day (2007 count).

How long is 29th TER(23.5-U.7) over Black Vermillion?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 20 ft wide.

Who owns 29th TER(23.5-U.7) over Black Vermillion?

It is owned by the County Highway Agency.