US Bridges

400th Ave over Spring Creek

FairPosted for load

Trego County, Kansas · 3.5N 15.0E Trego Center · Structure no. 000980575004465

Built
1933
92 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
44 ft
2 main spans
Daily traffic
25
2020 count
Owner
County
County Highway Agency

About this bridge

400th Ave over Spring Creek is a concrete slab carrying 400th Ave over Spring Creek in Trego County, Kansas. It was built in 1933, so it is 92 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 25 vehicles a day, projected to reach 30 by 2043. The structure is 44 ft (13.5 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries400th Ave
CrossesSpring Creek
Location3.5N 15.0E Trego Center
RouteCounty Highway 0
CountyTrego County
StateKansas
Coordinates38.93533, -99.61349
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length44 ft (13.5 m)
Longest span20 ft (6 m)
Deck width18 ft (5.4 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2020)
Projected traffic30 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 400th Ave over Spring Creek built?

It was built in 1933, making it 92 years old in 2025.

What condition is 400th Ave over Spring 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 2023.

How much traffic does 400th Ave over Spring Creek carry?

About 25 vehicles per day (2020 count).

How long is 400th Ave over Spring Creek?

The structure is 44 ft (13.5 m) long with a longest span of 20 ft (6 m) and a deck 18 ft wide.

Who owns 400th Ave over Spring Creek?

It is owned by the County Highway Agency.