US Bridges

W 1100 RD (rs 531) over Prairie Dog Creek

Good

Phillips County, Kansas · 0.5S of Long Island · Structure no. 000000000740140

Built
1956
69 years old, rebuilt 2019
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
300 ft
5 main spans
Daily traffic
350
2020 count
Owner
County
County Highway Agency

About this bridge

W 1100 RD (rs 531) over Prairie Dog Creek is a steel continuous stringer/multi-beam or girder carrying W 1100 RD (rs 531) over Prairie Dog Creek in Phillips County, Kansas. It was built in 1956 and reconstructed in 2019, so it is 69 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 350 vehicles a day, roughly 10% of them trucks, projected to reach 400 by 2044. The structure is 300 ft (91.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesW 1100 RD (rs 531)
CrossesPrairie Dog Creek
Location0.5S of Long Island
RouteCounty Highway 531
StateKansas
Coordinates39.94051, -99.53394
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating29.8 US tons
Inventory rating17.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length300 ft (91.4 m)
Longest span65 ft (19.8 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 traffic350 (2020)
Projected traffic400 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$788,000
NavigationNo navigation control on waterway

Frequently asked questions

When was W 1100 RD (rs 531) over Prairie Dog Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2019.

What condition is W 1100 RD (rs 531) over Prairie Dog 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 March 2024.

How much traffic does W 1100 RD (rs 531) over Prairie Dog Creek carry?

About 350 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is W 1100 RD (rs 531) over Prairie Dog Creek?

The structure is 300 ft (91.4 m) long with a longest span of 65 ft (19.8 m) and a deck 26 ft wide.

Who owns W 1100 RD (rs 531) over Prairie Dog Creek?

It is owned by the County Highway Agency.