US Bridges

Rs 415 (K.0-11.1) over Dow Creek

Good

Lyon County, Kansas · 5.0S of Allen · Structure no. 000000000560230

Built
1988
37 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
106 ft
3 main spans
Daily traffic
260
2007 count
Owner
County
County Highway Agency

About this bridge

Rs 415 (K.0-11.1) over Dow Creek is a concrete continuous slab carrying Rs 415 (K.0-11.1) over Dow Creek in Lyon County, Kansas. It was built in 1988, so it is 37 years old, younger 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 260 vehicles a day, roughly 10% of them trucks, projected to reach 280 by 2043. The structure is 106 ft (32.3 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRs 415 (K.0-11.1)
CrossesDow Creek
Location5.0S of Allen
RouteCounty Highway 415
CountyLyon County
StateKansas
Coordinates38.57828, -96.16997
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.7 US tons
Inventory rating44.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length106 ft (32.3 m)
Longest span42 ft (12.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic260 (2007)
Projected traffic280 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 415 (K.0-11.1) over Dow Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Rs 415 (K.0-11.1) over Dow 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 February 2023.

How much traffic does Rs 415 (K.0-11.1) over Dow Creek carry?

About 260 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Rs 415 (K.0-11.1) over Dow Creek?

The structure is 106 ft (32.3 m) long with a longest span of 42 ft (12.8 m) and a deck 26 ft wide.

Who owns Rs 415 (K.0-11.1) over Dow Creek?

It is owned by the County Highway Agency.