US Bridges

ST-85 Evans Road over Tonganoxie Creek

Good

Leavenworth County, Kansas · E. of Tonganoxie · Structure no. 000000000520390

Built
1995
30 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
1,220
2021 count
Owner
County
County Highway Agency

About this bridge

ST-85 Evans Road over Tonganoxie Creek is a concrete continuous slab carrying ST-85 Evans Road over Tonganoxie Creek in Leavenworth County, Kansas. It was built in 1995, so it is 30 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 1,220 vehicles a day, roughly 11% of them trucks, projected to reach 1,764 by 2042. The structure is 143 ft (43.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesST-85 Evans Road
CrossesTonganoxie Creek
LocationE. of Tonganoxie
RouteCounty Highway 1841
CountyLeavenworth County
StateKansas
Coordinates39.10192, -95.06849
Functional classUrban 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
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 rating86.8 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span56 ft (17.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,220 (2021)
Projected traffic1,764 by 2042
Trucks11%
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 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 ST-85 Evans Road over Tonganoxie Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is ST-85 Evans Road over Tonganoxie 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 August 2024.

How much traffic does ST-85 Evans Road over Tonganoxie Creek carry?

About 1,220 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is ST-85 Evans Road over Tonganoxie Creek?

The structure is 143 ft (43.6 m) long with a longest span of 56 ft (17.1 m) and a deck 32 ft wide.

Who owns ST-85 Evans Road over Tonganoxie Creek?

It is owned by the County Highway Agency.