US Bridges

I135 HWY NB over I70 Highway

Fair

Saline County, Kansas · JCT I70/I135 NB · Structure no. 999913500850401

Built
1970
55 years old, rebuilt 2021
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
4 main spans
Daily traffic
4,294
2023 count
Owner
State
State Highway Agency

About this bridge

I135 HWY NB over I70 Highway is a steel continuous stringer/multi-beam or girder carrying I135 HWY NB over I70 Highway in Saline County, Kansas. It was built in 1970 and reconstructed in 2021, so it is 55 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 4,294 vehicles a day, roughly 22% of them trucks, projected to reach 5,239 by 2044. The structure is 244 ft (74.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI135 HWY NB
CrossesI70 Highway
LocationJCT I70/I135 NB
RouteU.S. Route 81
StateKansas
Coordinates38.87444, -97.645
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating46 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length244 ft (74.4 m)
Longest span76 ft (23.2 m)
Deck width50 ft (15.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,294 (2023)
Projected traffic5,239 by 2044
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 I135 HWY NB over I70 Highway built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2021.

What condition is I135 HWY NB over I70 Highway 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 I135 HWY NB over I70 Highway carry?

About 4,294 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I135 HWY NB over I70 Highway?

The structure is 244 ft (74.4 m) long with a longest span of 76 ft (23.2 m) and a deck 50 ft wide.

Who owns I135 HWY NB over I70 Highway?

It is owned by the State Highway Agency.