US Bridges

Rp IS35S to IS435S over Is 35

Poor

Clay County, Missouri · S 27 T 51 N R 32 W · Structure no. 1271

Built
1969
56 years old, rebuilt 1986
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
251 ft
4 main spans
Daily traffic
16,197
2024 count
Owner
State
State Highway Agency

About this bridge

Rp IS35S to IS435S over Is 35 is a concrete continuous slab carrying Rp IS35S to IS435S over Is 35 in Clay County, Missouri. It was built in 1969 and reconstructed in 1986, so it is 56 years old, older than the Missouri average of 45.1 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 16,197 vehicles a day, roughly 16% of them trucks, projected to reach 29,155 by 2044. The structure is 251 ft (76.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRp IS35S to IS435S
CrossesIs 35
LocationS 27 T 51 N R 32 W
RouteState Highway 0
CountyClay County
StateMissouri
Coordinates39.20604, -94.49296
Functional classUrban Principal Arterial - Interstate

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 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 rating81.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length251 ft (76.5 m)
Longest span72 ft (21.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic16,197 (2024)
Projected traffic29,155 by 2044
Trucks16%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rp IS35S to IS435S over Is 35 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1986.

What condition is Rp IS35S to IS435S over Is 35 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 September 2024.

How much traffic does Rp IS35S to IS435S over Is 35 carry?

About 16,197 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Rp IS35S to IS435S over Is 35?

The structure is 251 ft (76.5 m) long with a longest span of 72 ft (21.9 m) and a deck 27 ft wide.

Who owns Rp IS35S to IS435S over Is 35?

It is owned by the State Highway Agency.