US Bridges

Rs 977 over Salty Creek

Good

Harper County, Kansas · 3.5S 0.6W of Corwin · Structure no. 000000000390340

Built
1988
37 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

Rs 977 over Salty Creek is a concrete continuous slab carrying Rs 977 over Salty Creek in Harper County, Kansas. It was built in 1988, so it is 37 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 50 vehicles a day, roughly 3% of them trucks, projected to reach 130 by 2043. The structure is 143 ft (43.6 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRs 977
CrossesSalty Creek
Location3.5S 0.6W of Corwin
RouteCounty Highway 977
CountyHarper County
StateKansas
Coordinates37.03614, -98.32136
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionFebruary 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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span55 ft (16.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2021)
Projected traffic130 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Rs 977 over Salty Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Rs 977 over Salty 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 February 2023.

How much traffic does Rs 977 over Salty Creek carry?

About 50 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Rs 977 over Salty Creek?

The structure is 143 ft (43.6 m) long with a longest span of 55 ft (16.7 m) and a deck 30 ft wide.

Who owns Rs 977 over Salty Creek?

It is owned by the County Highway Agency.