US Bridges

I135 HWY SB over I70 Highway

Poor

Saline County, Kansas · JCT I70/I135 SB · Structure no. 999913500850391

Built
1963
62 years old
Condition
Poor
inspected November 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
241 ft
4 main spans
Daily traffic
4,294
2023 count
Owner
State
State Highway Agency

About this bridge

I135 HWY SB over I70 Highway is a concrete continuous box beam or girders - multiple carrying I135 HWY SB over I70 Highway in Saline 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,294 vehicles a day, roughly 22% of them trucks, projected to reach 5,239 by 2044. The structure is 241 ft (73.6 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI135 HWY SB
CrossesI70 Highway
LocationJCT I70/I135 SB
RouteU.S. Route 81
StateKansas
Coordinates38.87444, -97.64556
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.2 US tons
Inventory rating42.5 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length241 ft (73.6 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 SB over I70 Highway built?

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

What condition is I135 HWY SB over I70 Highway in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does I135 HWY SB over I70 Highway carry?

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

How long is I135 HWY SB over I70 Highway?

The structure is 241 ft (73.6 m) long with a longest span of 76 ft (23.2 m) and a deck 50 ft wide.

Who owns I135 HWY SB over I70 Highway?

It is owned by the State Highway Agency.