US Bridges

310 Ave (rs 860) over Spring Creek

Fair

Graham County, Kansas · 5.9N 3.0E of Hill City · Structure no. 000000000330180

Built
1966
59 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

310 Ave (rs 860) over Spring Creek is a concrete continuous tee beam carrying 310 Ave (rs 860) over Spring Creek in Graham County, Kansas. It was built in 1966, so it is 59 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2044. The structure is 133 ft (40.5 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries310 Ave (rs 860)
CrossesSpring Creek
Location5.9N 3.0E of Hill City
RouteCounty Highway 860
CountyGraham County
StateKansas
Coordinates39.46464, -99.76974
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.1 US tons
Inventory rating19.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length133 ft (40.5 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic100 (2020)
Projected traffic120 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 310 Ave (rs 860) over Spring Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is 310 Ave (rs 860) 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 May 2024.

How much traffic does 310 Ave (rs 860) over Spring Creek carry?

About 100 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is 310 Ave (rs 860) over Spring Creek?

The structure is 133 ft (40.5 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns 310 Ave (rs 860) over Spring Creek?

It is owned by the County Highway Agency.