US Bridges

120th Ave over Saline River

Good

Trego County, Kansas · 6.7N 0.5W of Collyer · Structure no. 000980519004203

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
134 ft
3 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

120th Ave over Saline River is a concrete continuous slab carrying 120th Ave over Saline River in Trego County, Kansas. It was built in 2003, so it is 22 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 20 vehicles a day, projected to reach 30 by 2043. The structure is 134 ft (40.8 m) long and 28 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
Carries120th Ave
CrossesSaline River
Location6.7N 0.5W of Collyer
RouteCounty Highway 0
CountyTrego County
StateKansas
Coordinates39.12811, -100.12944
Functional classRural Local

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 inspectionJune 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating51.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span52 ft (16 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 120th Ave over Saline River built?

It was built in 2003, making it 22 years old in 2025.

What condition is 120th Ave over Saline River 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 June 2023.

How much traffic does 120th Ave over Saline River carry?

About 20 vehicles per day (2020 count).

How long is 120th Ave over Saline River?

The structure is 134 ft (40.8 m) long with a longest span of 52 ft (16 m) and a deck 28 ft wide.

Who owns 120th Ave over Saline River?

It is owned by the County Highway Agency.