US Bridges

W. 30th Dr. over Trib to Crooked Creek

Fair

Osborne County, Kansas · 4.0N 0.1W of Alton · Structure no. 000710645903660

Built
1930
95 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
25
2020 count
Owner
County
County Highway Agency

About this bridge

W. 30th Dr. over Trib to Crooked Creek is a concrete continuous slab carrying W. 30th Dr. over Trib to Crooked Creek in Osborne 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 5 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 25 vehicles a day, projected to reach 35 by 2043. The structure is 32 ft (9.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesW. 30th Dr.
CrossesTrib to Crooked Creek
Location4.0N 0.1W of Alton
RouteCounty Highway 7118
CountyOsborne County
StateKansas
Coordinates39.52404, -98.95267
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length32 ft (9.8 m)
Longest span15 ft (4.5 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2020)
Projected traffic35 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 W. 30th Dr. over Trib to Crooked Creek built?

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

What condition is W. 30th Dr. over Trib to Crooked 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 May 2023.

How much traffic does W. 30th Dr. over Trib to Crooked Creek carry?

About 25 vehicles per day (2020 count).

How long is W. 30th Dr. over Trib to Crooked Creek?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.5 m) and a deck 24 ft wide.

Who owns W. 30th Dr. over Trib to Crooked Creek?

It is owned by the County Highway Agency.