US Bridges

Deep Cr. Y.1-34.6C over Trib. to Deep Creek

GoodPosted for load

Riley County, Kansas · 7.8S 3.1E of Manhattan · Structure no. 000810909104286

Built
1930
95 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
180
2004 count
Owner
County
County Highway Agency

About this bridge

Deep Cr. Y.1-34.6C over Trib. to Deep Creek is a concrete culvert carrying Deep Cr. Y.1-34.6C over Trib. to Deep Creek in Riley 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 180 vehicles a day, roughly 12% of them trucks, projected to reach 185 by 2042. The structure is 21 ft (6.4 m) long and 34 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesDeep Cr. Y.1-34.6C
CrossesTrib. to Deep Creek
Location7.8S 3.1E of Manhattan
RouteCounty Highway 8115
StateKansas
Coordinates39.06452, -96.49914
Functional classRural Minor 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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic180 (2004)
Projected traffic185 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Deep Cr. Y.1-34.6C over Trib. to Deep Creek built?

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

What condition is Deep Cr. Y.1-34.6C over Trib. to Deep 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 December 2024.

How much traffic does Deep Cr. Y.1-34.6C over Trib. to Deep Creek carry?

About 180 vehicles per day (2004 count), of which roughly 12% are trucks.

How long is Deep Cr. Y.1-34.6C over Trib. to Deep Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Deep Cr. Y.1-34.6C over Trib. to Deep Creek?

It is owned by the County Highway Agency.