US Bridges

Killdeer over Rock Creek

Good

Elk County, Kansas · 0.5S 0.7W of Howard · Structure no. 000000000250590

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
171 ft
4 main spans
Daily traffic
125
2019 count
Owner
County
County Highway Agency

About this bridge

Killdeer over Rock Creek is a concrete continuous slab carrying Killdeer over Rock Creek in Elk County, Kansas. It was built in 1982, so it is 43 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2044. The structure is 171 ft (52.1 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKilldeer
CrossesRock Creek
Location0.5S 0.7W of Howard
RouteCounty Highway 1782
StateKansas
Coordinates37.46111, -96.27408
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.1 US tons
Inventory rating32.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span48 ft (14.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic125 (2019)
Projected traffic150 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Killdeer over Rock Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Killdeer over Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Killdeer over Rock Creek carry?

About 125 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Killdeer over Rock Creek?

The structure is 171 ft (52.1 m) long with a longest span of 48 ft (14.5 m) and a deck 30 ft wide.

Who owns Killdeer over Rock Creek?

It is owned by the County Highway Agency.