US Bridges

RS1508 over I35 HWY N&s Lanes

Good

Lyon County, Kansas · 5.82 MI East of K-99 · Structure no. 999903500561231

Built
1976
49 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
279 ft
4 main spans
Daily traffic
28
2023 count
Owner
State
State Highway Agency

About this bridge

RS1508 over I35 HWY N&s Lanes is a concrete continuous box beam or girders - multiple carrying RS1508 over I35 HWY N&s Lanes in Lyon County, Kansas. It was built in 1976, so it is 49 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28 vehicles a day. The structure is 279 ft (84.9 m) long and 30 ft wide.

CarriesRS1508
CrossesI35 HWY N&s Lanes
Location5.82 MI East of K-99
RouteCounty Highway 592
StateKansas
Coordinates38.41083, -96.07917
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.7 US tons
Inventory rating29.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length279 ft (84.9 m)
Longest span95 ft (29 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2023)
Projected traffic—
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 RS1508 over I35 HWY N&s Lanes built?

It was built in 1976, making it 49 years old in 2025.

What condition is RS1508 over I35 HWY N&s Lanes 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 RS1508 over I35 HWY N&s Lanes carry?

About 28 vehicles per day (2023 count).

How long is RS1508 over I35 HWY N&s Lanes?

The structure is 279 ft (84.9 m) long with a longest span of 95 ft (29 m) and a deck 30 ft wide.

Who owns RS1508 over I35 HWY N&s Lanes?

It is owned by the State Highway Agency.