US Bridges

SW 70 St. G.9-14.0 over Allen Creek

FairPosted for load

Kingman County, Kansas · 2.0N 2.0W of Willowdale · Structure no. 000480709906380

Built
1945
80 years old, rebuilt 2009
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

SW 70 St. G.9-14.0 over Allen Creek is a wood or timber stringer/multi-beam or girder carrying SW 70 St. G.9-14.0 over Allen Creek in Kingman County, Kansas. It was built in 1945 and reconstructed in 2009, so it is 80 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 5% of them trucks, projected to reach 96 by 2043. The structure is 59 ft (18 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSW 70 St. G.9-14.0
CrossesAllen Creek
Location2.0N 2.0W of Willowdale
RouteCounty Highway 0
CountyKingman County
StateKansas
Coordinates37.54381, -98.33722
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: 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 alignment6: Equal to present minimum criteria
Operating rating30.6 US tons
Inventory rating21.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic96 by 2043
Trucks5%
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 SW 70 St. G.9-14.0 over Allen Creek built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 2009.

What condition is SW 70 St. G.9-14.0 over Allen Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does SW 70 St. G.9-14.0 over Allen Creek carry?

About 10 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SW 70 St. G.9-14.0 over Allen Creek?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns SW 70 St. G.9-14.0 over Allen Creek?

It is owned by the County Highway Agency.