US Bridges

Wyandotte ST S over Is 35

Fair

Jackson County, Missouri · S 32 T 50 N R 33 W · Structure no. 6306

Built
1954
71 years old, rebuilt 1986
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
225 ft
4 main spans
Daily traffic
5,544
2024 count
Owner
State
State Highway Agency

About this bridge

Wyandotte ST S over Is 35 is a prestressed concrete continuous stringer/multi-beam or girder carrying Wyandotte ST S over Is 35 in Jackson County, Missouri. It was built in 1954 and reconstructed in 1986, 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 5 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 5,544 vehicles a day, roughly 5% of them trucks, projected to reach 7,762 by 2044. The structure is 225 ft (68.6 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWyandotte ST S
CrossesIs 35
LocationS 32 T 50 N R 33 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.10692, -94.58526
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length225 ft (68.6 m)
Longest span65 ft (19.7 m)
Deck width65 ft (19.7 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,544 (2024)
Projected traffic7,762 by 2044
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 Wyandotte ST S over Is 35 built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1986.

What condition is Wyandotte 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 Wyandotte ST S over Is 35 carry?

About 5,544 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Wyandotte ST S over Is 35?

The structure is 225 ft (68.6 m) long with a longest span of 65 ft (19.7 m) and a deck 65 ft wide.

Who owns Wyandotte ST S over Is 35?

It is owned by the State Highway Agency.