US Bridges

US183 Bypass over I70 HWY Nl-Sl

Fair

Ellis County, Kansas · Jt U183Y/I70 · Structure no. 9999183Y0260191

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
268 ft
4 main spans
Daily traffic
3,622
2023 count
Owner
State
State Highway Agency

About this bridge

US183 Bypass over I70 HWY Nl-Sl is a concrete continuous box beam or girders - multiple carrying US183 Bypass over I70 HWY Nl-Sl in Ellis County, Kansas. It was built in 1964, so it is 61 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 3,622 vehicles a day, roughly 15% of them trucks, projected to reach 4,975 by 2044. The structure is 268 ft (81.8 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesUS183 Bypass
CrossesI70 HWY Nl-Sl
LocationJt U183Y/I70
RouteU.S. Route 183
CountyEllis County
StateKansas
Coordinates38.91222, -99.35444
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating75.3 US tons
Inventory rating45.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length268 ft (81.8 m)
Longest span76 ft (23.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,622 (2023)
Projected traffic4,975 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US183 Bypass over I70 HWY Nl-Sl built?

It was built in 1964, making it 61 years old in 2025.

What condition is US183 Bypass over I70 HWY Nl-Sl 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 US183 Bypass over I70 HWY Nl-Sl carry?

About 3,622 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is US183 Bypass over I70 HWY Nl-Sl?

The structure is 268 ft (81.8 m) long with a longest span of 76 ft (23.2 m) and a deck 32 ft wide.

Who owns US183 Bypass over I70 HWY Nl-Sl?

It is owned by the State Highway Agency.