US Bridges

145th Ave (rs 275) over Saline River

FairPosted for load

Trego County, Kansas · 6.2N 1.8E 0F Collyer · Structure no. 000000000980070

Built
1955
70 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
3 main spans
Daily traffic
135
2020 count
Owner
County
County Highway Agency

About this bridge

145th Ave (rs 275) over Saline River is a steel continuous stringer/multi-beam or girder carrying 145th Ave (rs 275) over Saline River in Trego County, Kansas. It was built in 1955, so it is 70 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 135 vehicles a day, roughly 10% of them trucks, projected to reach 145 by 2043. The structure is 184 ft (56.1 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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Carries145th Ave (rs 275)
CrossesSaline River
Location6.2N 1.8E 0F Collyer
RouteCounty Highway 275
CountyTrego County
StateKansas
Coordinates39.12143, -100.08308
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating17.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length184 ft (56.1 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic135 (2020)
Projected traffic145 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$600,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 145th Ave (rs 275) over Saline River built?

It was built in 1955, making it 70 years old in 2025.

What condition is 145th Ave (rs 275) over Saline 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 June 2023.

How much traffic does 145th Ave (rs 275) over Saline River carry?

About 135 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is 145th Ave (rs 275) over Saline River?

The structure is 184 ft (56.1 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns 145th Ave (rs 275) over Saline River?

It is owned by the County Highway Agency.