US Bridges

I-70 HWY over Drainage

Good

Douglas County, Kansas · 1.52 MI W US-40 & 59 · Structure no. 999907000231603

Built
2007
18 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
16,326
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-70 HWY over Drainage is a concrete culvert carrying I-70 HWY over Drainage in Douglas County, Kansas. It was built in 2007, so it is 18 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,326 vehicles a day, roughly 20% of them trucks, projected to reach 20,319 by 2044. The structure is 24 ft (7.4 m) long and 196 ft wide.

Location

Open in Google Maps
CarriesI-70 HWY
CrossesDrainage
Location1.52 MI W US-40 & 59
RouteInterstate 70
CountyDouglas County
StateKansas
Coordinates38.99, -95.26111
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length24 ft (7.4 m)
Longest span7 ft (2.1 m)
Deck width196 ft (59.8 m)
Roadway width191 ft (58.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,326 (2023)
Projected traffic20,319 by 2044
Trucks20%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 HWY over Drainage built?

It was built in 2007, making it 18 years old in 2025.

What condition is I-70 HWY over Drainage 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 June 2024.

How much traffic does I-70 HWY over Drainage carry?

About 16,326 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is I-70 HWY over Drainage?

The structure is 24 ft (7.4 m) long with a longest span of 7 ft (2.1 m) and a deck 196 ft wide.

Who owns I-70 HWY over Drainage?

It is owned by the State Toll Authority.