US Bridges

Thorn Drive over Davis Creek

Poor

Wyandotte County, Kansas · Thorn DR S of Old Ks Ave. · Structure no. 514301050000311

Built
1961
64 years old
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
131 ft
3 main spans
Daily traffic
356
1990 count
Owner
County
County Highway Agency

About this bridge

Thorn Drive over Davis Creek is a steel continuous stringer/multi-beam or girder carrying Thorn Drive over Davis Creek in Wyandotte County, Kansas. It was built in 1961, so it is 64 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 356 vehicles a day, roughly 90% of them trucks, projected to reach 550 by 2043. The structure is 131 ft (39.9 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesThorn Drive
CrossesDavis Creek
LocationThorn DR S of Old Ks Ave.
RouteCity Street 0
StateKansas
Coordinates39.08701, -94.71333
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.3 US tons
Inventory rating27.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length131 ft (39.9 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 traffic356 (1990)
Projected traffic550 by 2043
Trucks90%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$625,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Thorn Drive over Davis Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Thorn Drive over Davis Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does Thorn Drive over Davis Creek carry?

About 356 vehicles per day (1990 count), of which roughly 90% are trucks.

How long is Thorn Drive over Davis Creek?

The structure is 131 ft (39.9 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Thorn Drive over Davis Creek?

It is owned by the County Highway Agency.