US Bridges

F-12.4 Minor over Salt Creek

Fair

Ottawa County, Kansas · 3.0E 1.0S of Ada · Structure no. 000720767004184

Built
1982
43 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
3 main spans
Daily traffic
25
2001 count
Owner
County
County Highway Agency

About this bridge

F-12.4 Minor over Salt Creek is a steel stringer/multi-beam or girder carrying F-12.4 Minor over Salt Creek in Ottawa County, Kansas. It was built in 1982, so it is 43 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 6 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 25 vehicles a day, projected to reach 25 by 2044. The structure is 90 ft (27.4 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesF-12.4 Minor
CrossesSalt Creek
Location3.0E 1.0S of Ada
RouteCounty Highway 7209
CountyOttawa County
StateKansas
Coordinates39.1388, -97.83677
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span50 ft (15.3 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2001)
Projected traffic25 by 2044
Trucks0%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$183,000
NavigationNo navigation control on waterway

Frequently asked questions

When was F-12.4 Minor over Salt Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is F-12.4 Minor over Salt Creek 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 February 2024.

How much traffic does F-12.4 Minor over Salt Creek carry?

About 25 vehicles per day (2001 count).

How long is F-12.4 Minor over Salt Creek?

The structure is 90 ft (27.4 m) long with a longest span of 50 ft (15.3 m) and a deck 27 ft wide.

Who owns F-12.4 Minor over Salt Creek?

It is owned by the County Highway Agency.