US Bridges

Rs 120 River Road over Cimarron River

GoodPosted for load

Clark County, Kansas · 10.4S of Ashland · Structure no. 000000000130080

Built
1970
55 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
753 ft
11 main spans
Daily traffic
130
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 120 River Road over Cimarron River is a steel continuous stringer/multi-beam or girder carrying Rs 120 River Road over Cimarron River in Clark County, Kansas. It was built in 1970, so it is 55 years old, older 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. Its operating status is: posted for load restriction.

It carries about 130 vehicles a day, roughly 3% of them trucks, projected to reach 155 by 2044. The structure is 753 ft (229.5 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesRs 120 River Road
CrossesCimarron River
Location10.4S of Ashland
RouteCounty Highway 120
StateKansas
Coordinates37.03728, -99.77644
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be 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 rating30.4 US tons
Inventory rating16.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 15
Structure length753 ft (229.5 m)
Longest span72 ft (21.9 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 traffic130 (2022)
Projected traffic155 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Rs 120 River Road over Cimarron River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Rs 120 River Road over Cimarron River 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 November 2024.

How much traffic does Rs 120 River Road over Cimarron River carry?

About 130 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Rs 120 River Road over Cimarron River?

The structure is 753 ft (229.5 m) long with a longest span of 72 ft (21.9 m) and a deck 30 ft wide.

Who owns Rs 120 River Road over Cimarron River?

It is owned by the County Highway Agency.