US Bridges

100 Ave over Dry Walnut Creek

FairPosted for load

Pawnee County, Kansas · 10.5N 1.5E of Larned · Structure no. 000730633005281

Built
1930
95 years old
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
39 ft
1 main span
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

100 Ave over Dry Walnut Creek is a concrete arch - deck carrying 100 Ave over Dry Walnut Creek in Pawnee 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 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 15 vehicles a day, roughly 5% of them trucks, projected to reach 20 by 2044. The structure is 39 ft (11.9 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries100 Ave
CrossesDry Walnut Creek
Location10.5N 1.5E of Larned
RouteCounty Highway 0
StateKansas
Coordinates38.34779, -99.06921
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.8 US tons
Inventory rating16 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span30 ft (9.1 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15 (2021)
Projected traffic20 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$260,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 100 Ave over Dry Walnut Creek built?

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

What condition is 100 Ave over Dry Walnut 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 2024.

How much traffic does 100 Ave over Dry Walnut Creek carry?

About 15 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 100 Ave over Dry Walnut Creek?

The structure is 39 ft (11.9 m) long with a longest span of 30 ft (9.1 m) and a deck 21 ft wide.

Who owns 100 Ave over Dry Walnut Creek?

It is owned by the County Highway Agency.