US Bridges

Isabel Road over Sand Creek

FairPosted for load

Barber County, Kansas · 4.0S 1.0E of Isabel · Structure no. 000000000040490

Built
1975
50 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
142 ft
4 main spans
Daily traffic
445
2021 count
Owner
County
County Highway Agency

About this bridge

Isabel Road over Sand Creek is a concrete continuous slab carrying Isabel Road over Sand Creek in Barber County, Kansas. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 445 vehicles a day, roughly 10% of them trucks, projected to reach 535 by 2043. The structure is 142 ft (43.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIsabel Road
CrossesSand Creek
Location4.0S 1.0E of Isabel
RouteCounty Highway 34
StateKansas
Coordinates37.40917, -98.53785
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.5 US tons
Inventory rating27.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span40 ft (12.1 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 traffic445 (2021)
Projected traffic535 by 2043
Trucks10%
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 Isabel Road over Sand Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Isabel Road over Sand 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 October 2023.

How much traffic does Isabel Road over Sand Creek carry?

About 445 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Isabel Road over Sand Creek?

The structure is 142 ft (43.3 m) long with a longest span of 40 ft (12.1 m) and a deck 30 ft wide.

Who owns Isabel Road over Sand Creek?

It is owned by the County Highway Agency.