US Bridges

30th RD (rs 1231) over N. Fk. Black Vermillion

FairPosted for load

Marshall County, Kansas · 1.0N of Axtell · Structure no. 000000000580590

Built
1949
76 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
124 ft
3 main spans
Daily traffic
242
2007 count
Owner
County
County Highway Agency

About this bridge

30th RD (rs 1231) over N. Fk. Black Vermillion is a concrete continuous tee beam carrying 30th RD (rs 1231) over N. Fk. Black Vermillion in Marshall County, Kansas. It was built in 1949, so it is 76 years old, older 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 5 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 242 vehicles a day, roughly 11% of them trucks, projected to reach 242 by 2043. The structure is 124 ft (37.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries30th RD (rs 1231)
CrossesN. Fk. Black Vermillion
Location1.0N of Axtell
RouteCounty Highway 1231
CountyMarshall County
StateKansas
Coordinates39.88766, -96.25841
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.3 US tons
Inventory rating18.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length124 ft (37.8 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic242 (2007)
Projected traffic242 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$255,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 30th RD (rs 1231) over N. Fk. Black Vermillion built?

It was built in 1949, making it 76 years old in 2025.

What condition is 30th RD (rs 1231) over N. Fk. 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 July 2023.

How much traffic does 30th RD (rs 1231) over N. Fk. Black Vermillion carry?

About 242 vehicles per day (2007 count), of which roughly 11% are trucks.

How long is 30th RD (rs 1231) over N. Fk. Black Vermillion?

The structure is 124 ft (37.8 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns 30th RD (rs 1231) over N. Fk. Black Vermillion?

It is owned by the County Highway Agency.