US Bridges

Aiken Switch Road over Vermillion River

Fair

Pottawatomie County, Kansas · 6.0S of Onaga · Structure no. 000000000750560

Built
1983
42 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
206 ft
3 main spans
Daily traffic
155
2013 count
Owner
County
County Highway Agency

About this bridge

Aiken Switch Road over Vermillion River is a prestressed concrete continuous tee beam carrying Aiken Switch Road over Vermillion River in Pottawatomie County, Kansas. It was built in 1983, so it is 42 years old, younger 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 155 vehicles a day, roughly 1% of them trucks, projected to reach 186 by 2043. The structure is 206 ft (62.8 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAiken Switch Road
CrossesVermillion River
Location6.0S of Onaga
RouteCounty Highway 1343
CountyPottawatomie County
StateKansas
Coordinates39.39829, -96.17465
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 rating42.3 US tons
Inventory rating22.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length206 ft (62.8 m)
Longest span68 ft (20.6 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 traffic155 (2013)
Projected traffic186 by 2043
Trucks1%
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 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 Aiken Switch Road over Vermillion River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Aiken Switch Road over Vermillion River 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 August 2023.

How much traffic does Aiken Switch Road over Vermillion River carry?

About 155 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Aiken Switch Road over Vermillion River?

The structure is 206 ft (62.8 m) long with a longest span of 68 ft (20.6 m) and a deck 28 ft wide.

Who owns Aiken Switch Road over Vermillion River?

It is owned by the County Highway Agency.