US Bridges

Walnut ST S over Is 35

Fair

Jackson County, Missouri · S 32 T 50 N R 33 W · Structure no. 6307

Built
1954
71 years old, rebuilt 1987
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
4 main spans
Daily traffic
6,478
2024 count
Owner
State
State Highway Agency

About this bridge

Walnut ST S over Is 35 is a prestressed concrete continuous stringer/multi-beam or girder carrying Walnut ST S over Is 35 in Jackson County, Missouri. It was built in 1954 and reconstructed in 1987, so it is 71 years old, older than the Missouri average of 45.1 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 6,478 vehicles a day, roughly 10% of them trucks, projected to reach 9,069 by 2044. The structure is 232 ft (70.7 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesWalnut ST S
CrossesIs 35
LocationS 32 T 50 N R 33 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.10678, -94.58143
Functional classUrban Collector

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 inspectionSeptember 2023
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 alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span67 ft (20.3 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,478 (2024)
Projected traffic9,069 by 2044
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Walnut ST S over Is 35 built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1987.

What condition is Walnut ST S over Is 35 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 September 2023.

How much traffic does Walnut ST S over Is 35 carry?

About 6,478 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Walnut ST S over Is 35?

The structure is 232 ft (70.7 m) long with a longest span of 67 ft (20.3 m) and a deck 55 ft wide.

Who owns Walnut ST S over Is 35?

It is owned by the State Highway Agency.