US Bridges

Mo 9 S over Cst E 6th ST Is 35

Fair

Jackson County, Missouri · S 5 T 49 N R 33 W · Structure no. 3375

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
416 ft
7 main spans
Daily traffic
20,304
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 9 S over Cst E 6th ST Is 35 is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 9 S over Cst E 6th ST Is 35 in Jackson County, Missouri. It was built in 1985, so it is 40 years old, younger 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 20,304 vehicles a day, roughly 4% of them trucks, projected to reach 27,410 by 2044. The structure is 416 ft (126.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 9 S
CrossesCst E 6th ST Is 35
LocationS 5 T 49 N R 33 W
RouteState Highway 9
CountyJackson County
StateMissouri
Coordinates39.10646, -94.57707
Functional classUrban Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length416 ft (126.7 m)
Longest span76 ft (23.2 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,304 (2024)
Projected traffic27,410 by 2044
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 9 S over Cst E 6th ST Is 35 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Mo 9 S over Cst E 6th ST 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 Mo 9 S over Cst E 6th ST Is 35 carry?

About 20,304 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Mo 9 S over Cst E 6th ST Is 35?

The structure is 416 ft (126.7 m) long with a longest span of 76 ft (23.2 m) and a deck 41 ft wide.

Who owns Mo 9 S over Cst E 6th ST Is 35?

It is owned by the State Highway Agency.