US Bridges

30th RD over Wolf Creek

Good

Lincoln County, Kansas · 3.0W of Sylvan Grove · Structure no. 000530701004366

Built
1981
44 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
152 ft
3 main spans
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

30th RD over Wolf Creek is a prestressed concrete continuous tee beam carrying 30th RD over Wolf Creek in Lincoln County, Kansas. It was built in 1981, so it is 44 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 50 by 2044. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Carries30th RD
CrossesWolf Creek
Location3.0W of Sylvan Grove
RouteCounty Highway 5301
StateKansas
Coordinates39.00667, -98.44889
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.4 US tons
Inventory rating21.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length152 ft (46.3 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2022)
Projected traffic50 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 30th RD over Wolf Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is 30th RD over Wolf 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 October 2024.

How much traffic does 30th RD over Wolf Creek carry?

About 40 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 30th RD over Wolf Creek?

The structure is 152 ft (46.3 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns 30th RD over Wolf Creek?

It is owned by the County Highway Agency.