US Bridges

I70 HWY Nl-Sl over Smoky Hill River Drain

Fair

Russell County, Kansas · 16.27 MI E Jt U281 · Structure no. 999907000840331

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
6,300
2023 count
Owner
State
State Highway Agency

About this bridge

I70 HWY Nl-Sl over Smoky Hill River Drain is a concrete culvert carrying I70 HWY Nl-Sl over Smoky Hill River Drain in Russell County, Kansas. It was built in 1963, so it is 62 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.

It carries about 6,300 vehicles a day, roughly 27% of them trucks, projected to reach 7,997 by 2044. The structure is 25 ft (7.6 m) long and 152 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI70 HWY Nl-Sl
CrossesSmoky Hill River Drain
Location16.27 MI E Jt U281
RouteInterstate 70
StateKansas
Coordinates38.85639, -98.55389
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width152 ft (46.2 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2023)
Projected traffic7,997 by 2044
Trucks27%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I70 HWY Nl-Sl over Smoky Hill River Drain built?

It was built in 1963, making it 62 years old in 2025.

What condition is I70 HWY Nl-Sl over Smoky Hill River Drain 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 April 2023.

How much traffic does I70 HWY Nl-Sl over Smoky Hill River Drain carry?

About 6,300 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is I70 HWY Nl-Sl over Smoky Hill River Drain?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 152 ft wide.

Who owns I70 HWY Nl-Sl over Smoky Hill River Drain?

It is owned by the State Highway Agency.