US Bridges

Rs 308 RD31 over North Bear Creek

GoodPosted for load

Hamilton County, Kansas · 10.0S 7.9W of Syracuse · Structure no. 000000000380040

Built
1959
66 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
485
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 308 RD31 over North Bear Creek is a concrete culvert carrying Rs 308 RD31 over North Bear Creek in Hamilton County, Kansas. It was built in 1959, so it is 66 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 485 vehicles a day, roughly 10% of them trucks, projected to reach 745 by 2041. The structure is 43 ft (13 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRs 308 RD31
CrossesNorth Bear Creek
Location10.0S 7.9W of Syracuse
RouteCounty Highway 308
StateKansas
Coordinates37.82694, -101.90356
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating30.8 US tons
Inventory rating18.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length43 ft (13 m)
Longest span10 ft (3 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 traffic485 (2022)
Projected traffic745 by 2041
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 308 RD31 over North Bear Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Rs 308 RD31 over North Bear 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 November 2023.

How much traffic does Rs 308 RD31 over North Bear Creek carry?

About 485 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Rs 308 RD31 over North Bear Creek?

The structure is 43 ft (13 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Rs 308 RD31 over North Bear Creek?

It is owned by the County Highway Agency.