US Bridges

Rs 1 over Branch of Neosho River

GoodPosted for load

Allen County, Kansas · 2.0W 1.7N of Humboldt · Structure no. 000000000010040

Built
1930
95 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
296
2006 count
Owner
County
County Highway Agency

About this bridge

Rs 1 over Branch of Neosho River is a concrete culvert carrying Rs 1 over Branch of Neosho River in Allen County, Kansas. It was built in 1930, so it is 95 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 296 vehicles a day, roughly 11% of them trucks, projected to reach 368 by 2042. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRs 1
CrossesBranch of Neosho River
Location2.0W 1.7N of Humboldt
RouteCounty Highway 1
StateKansas
Coordinates37.84282, -95.48253
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15 US tons
Inventory rating15 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length25 ft (7.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic296 (2006)
Projected traffic368 by 2042
Trucks11%
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 Rs 1 over Branch of Neosho River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Rs 1 over Branch of Neosho 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 February 2024.

How much traffic does Rs 1 over Branch of Neosho River carry?

About 296 vehicles per day (2006 count), of which roughly 11% are trucks.

How long is Rs 1 over Branch of Neosho River?

The structure is 25 ft (7.7 m) long with a longest span of 8 ft (2.4 m).

Who owns Rs 1 over Branch of Neosho River?

It is owned by the County Highway Agency.