US Bridges

NE 70 ST over Rattlesnake Creek

FairPosted for load

Stafford County, Kansas · 4.0N of St. John · Structure no. 000000000930150

Built
1993
32 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
237 ft
5 main spans
Daily traffic
300
2021 count
Owner
County
County Highway Agency

About this bridge

NE 70 ST over Rattlesnake Creek is a concrete continuous slab carrying NE 70 ST over Rattlesnake Creek in Stafford County, Kansas. It was built in 1993, so it is 32 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 240 by 2044. The structure is 237 ft (72.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNE 70 ST
CrossesRattlesnake Creek
Location4.0N of St. John
RouteCounty Highway 636
StateKansas
Coordinates38.05759, -98.74472
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.9 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span52 ft (15.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic300 (2021)
Projected traffic240 by 2044
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 NE 70 ST over Rattlesnake Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is NE 70 ST over Rattlesnake 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 November 2024.

How much traffic does NE 70 ST over Rattlesnake Creek carry?

About 300 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NE 70 ST over Rattlesnake Creek?

The structure is 237 ft (72.2 m) long with a longest span of 52 ft (15.7 m) and a deck 32 ft wide.

Who owns NE 70 ST over Rattlesnake Creek?

It is owned by the County Highway Agency.