US Bridges

30 Road (rs 630) over Walnut Creek Tributary

Fair

Smith County, Kansas · 1.1E of Womer · Structure no. 000000000920024

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

30 Road (rs 630) over Walnut Creek Tributary is a steel stringer/multi-beam or girder carrying 30 Road (rs 630) over Walnut Creek Tributary in Smith County, Kansas. It was built in 1966, so it is 59 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.

It carries about 30 vehicles a day, projected to reach 40 by 2043. The structure is 24 ft (7.3 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries30 Road (rs 630)
CrossesWalnut Creek Tributary
Location1.1E of Womer
RouteCounty Highway 630
CountySmith County
StateKansas
Coordinates39.97348, -98.6887
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating19.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2020)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 30 Road (rs 630) over Walnut Creek Tributary built?

It was built in 1966, making it 59 years old in 2025.

What condition is 30 Road (rs 630) over Walnut Creek Tributary 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 March 2023.

How much traffic does 30 Road (rs 630) over Walnut Creek Tributary carry?

About 30 vehicles per day (2020 count).

How long is 30 Road (rs 630) over Walnut Creek Tributary?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 29 ft wide.

Who owns 30 Road (rs 630) over Walnut Creek Tributary?

It is owned by the County Highway Agency.