US Bridges

I-70 Highway over South Fork Sappa Creek

Fair

Thomas County, Kansas · 4.01 MI E. of K-184 · Structure no. 999907000970051

Built
1966
59 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
82 ft
4 main spans
Daily traffic
5,450
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 Highway over South Fork Sappa Creek is a concrete culvert carrying I-70 Highway over South Fork Sappa Creek in Thomas County, Kansas. It was built in 1966, so it is 59 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 5,450 vehicles a day, roughly 29% of them trucks, projected to reach 6,520 by 2044. The structure is 82 ft (24.9 m) long and 130 ft wide.

CarriesI-70 Highway
CrossesSouth Fork Sappa Creek
Location4.01 MI E. of K-184
RouteInterstate 70
StateKansas
Coordinates39.36611, -101.30667
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 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length82 ft (24.9 m)
Longest span20 ft (6.1 m)
Deck width130 ft (39.5 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (2023)
Projected traffic6,520 by 2044
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 I-70 Highway over South Fork Sappa Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-70 Highway over South Fork Sappa 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 April 2024.

How much traffic does I-70 Highway over South Fork Sappa Creek carry?

About 5,450 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is I-70 Highway over South Fork Sappa Creek?

The structure is 82 ft (24.9 m) long with a longest span of 20 ft (6.1 m) and a deck 130 ft wide.

Who owns I-70 Highway over South Fork Sappa Creek?

It is owned by the State Highway Agency.