US Bridges

30 Road over Walnut Creek

Good

Smith County, Kansas · 1.0W of Womer · Structure no. 000920673103040

Built
1979
46 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
101 ft
3 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

30 Road over Walnut Creek is a steel continuous stringer/multi-beam or girder carrying 30 Road over Walnut Creek in Smith County, Kansas. It was built in 1979, so it is 46 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 20 vehicles a day, projected to reach 25 by 2043. The structure is 101 ft (30.7 m) long and 25 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries30 Road
CrossesWalnut Creek
Location1.0W of Womer
RouteCounty Highway 0
CountySmith County
StateKansas
Coordinates39.9735, -98.72812
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating23.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans3
Design loadH 20
Structure length101 ft (30.7 m)
Longest span40 ft (12.1 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic25 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 30 Road over Walnut Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is 30 Road over Walnut 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 2023.

How much traffic does 30 Road over Walnut Creek carry?

About 20 vehicles per day (2020 count).

How long is 30 Road over Walnut Creek?

The structure is 101 ft (30.7 m) long with a longest span of 40 ft (12.1 m) and a deck 25 ft wide.

Who owns 30 Road over Walnut Creek?

It is owned by the County Highway Agency.