US Bridges

Red Rock RD.34.85 over Trib Arkansas River

Fair

Reno County, Kansas · 0.9E of Yoder · Structure no. 000000000780760

Built
1956
69 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
56 ft
5 main spans
Daily traffic
375
2021 count
Owner
County
County Highway Agency

About this bridge

Red Rock RD.34.85 over Trib Arkansas River is a concrete culvert carrying Red Rock RD.34.85 over Trib Arkansas River in Reno County, Kansas. It was built in 1956, so it is 69 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 375 vehicles a day, roughly 10% of them trucks, projected to reach 450 by 2046. The structure is 56 ft (17.1 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRed Rock RD.34.85
CrossesTrib Arkansas River
Location0.9E of Yoder
RouteCounty Highway 631
CountyReno County
StateKansas
Coordinates37.9409, -97.85124
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 rating33 US tons
Inventory rating18.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length56 ft (17.1 m)
Longest span10 ft (2.9 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic375 (2021)
Projected traffic450 by 2046
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Red Rock RD.34.85 over Trib Arkansas River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Red Rock RD.34.85 over Trib Arkansas River 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 2024.

How much traffic does Red Rock RD.34.85 over Trib Arkansas River carry?

About 375 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Red Rock RD.34.85 over Trib Arkansas River?

The structure is 56 ft (17.1 m) long with a longest span of 10 ft (2.9 m) and a deck 28 ft wide.

Who owns Red Rock RD.34.85 over Trib Arkansas River?

It is owned by the County Highway Agency.