US Bridges

Rs 308 RD B over Trib. to Arkansas Riv.

Good

Hamilton County, Kansas · 0.5S of Coolidge · Structure no. 000000000380080

Built
1962
63 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
310
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 308 RD B over Trib. to Arkansas Riv. is a concrete culvert carrying Rs 308 RD B over Trib. to Arkansas Riv. in Hamilton County, Kansas. It was built in 1962, so it is 63 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.

It carries about 310 vehicles a day, roughly 10% of them trucks, projected to reach 360 by 2041. The structure is 42 ft (12.8 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesRs 308 RD B
CrossesTrib. to Arkansas Riv.
Location0.5S of Coolidge
RouteCounty Highway 308
CountyHamilton County
StateKansas
Coordinates38.03278, -102.01167
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
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 alignment7: Better than present minimum criteria
Operating rating37.9 US tons
Inventory rating22.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic310 (2022)
Projected traffic360 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 308 RD B over Trib. to Arkansas Riv. built?

It was built in 1962, making it 63 years old in 2025.

What condition is Rs 308 RD B over Trib. to Arkansas Riv. 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 2023.

How much traffic does Rs 308 RD B over Trib. to Arkansas Riv. carry?

About 310 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Rs 308 RD B over Trib. to Arkansas Riv.?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Rs 308 RD B over Trib. to Arkansas Riv.?

It is owned by the County Highway Agency.