US Bridges

Rock over Trib. to Rock Creek

Fair

Elk County, Kansas · 6.0N 6.6W of Howard · Structure no. 000000000250170

Built
1934
91 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
36 ft
4 main spans
Daily traffic
70
2019 count
Owner
County
County Highway Agency

About this bridge

Rock over Trib. to Rock Creek is a concrete culvert carrying Rock over Trib. to Rock Creek in Elk County, Kansas. It was built in 1934, so it is 91 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.

It carries about 70 vehicles a day, roughly 10% of them trucks, projected to reach 85 by 2044. The structure is 36 ft (10.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRock
CrossesTrib. to Rock Creek
Location6.0N 6.6W of Howard
RouteCounty Highway 89
CountyElk County
StateKansas
Coordinates37.56317, -96.38099
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length36 ft (10.9 m)
Longest span8 ft (2.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic70 (2019)
Projected traffic85 by 2044
Trucks10%
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 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 Rock over Trib. to Rock Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is Rock over Trib. to Rock 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 August 2024.

How much traffic does Rock over Trib. to Rock Creek carry?

About 70 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Rock over Trib. to Rock Creek?

The structure is 36 ft (10.9 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns Rock over Trib. to Rock Creek?

It is owned by the County Highway Agency.