US Bridges

Rp IS29S to IS35N over Is 29 Is 35

FairPosted for load

Clay County, Missouri · S 1 T 50 N R 33 W · Structure no. 1459

Built
1967
58 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
818 ft
10 main spans
Daily traffic
16,194
2024 count
Owner
State
State Highway Agency

About this bridge

Rp IS29S to IS35N over Is 29 Is 35 is a concrete continuous box beam or girders - single or spread carrying Rp IS29S to IS35N over Is 29 Is 35 in Clay County, Missouri. It was built in 1967, so it is 58 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. Its operating status is: posted for load restriction.

It carries about 16,194 vehicles a day, roughly 12% of them trucks, projected to reach 29,149 by 2044. The structure is 818 ft (249.3 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRp IS29S to IS35N
CrossesIs 29 Is 35
LocationS 1 T 50 N R 33 W
RouteState Highway 0
CountyClay County
StateMissouri
Coordinates39.1702, -94.55771
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20 + Mod
Structure length818 ft (249.3 m)
Longest span95 ft (29 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,194 (2024)
Projected traffic29,149 by 2044
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rp IS29S to IS35N over Is 29 Is 35 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Rp IS29S to IS35N over Is 29 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 April 2023.

How much traffic does Rp IS29S to IS35N over Is 29 Is 35 carry?

About 16,194 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Rp IS29S to IS35N over Is 29 Is 35?

The structure is 818 ft (249.3 m) long with a longest span of 95 ft (29 m) and a deck 27 ft wide.

Who owns Rp IS29S to IS35N over Is 29 Is 35?

It is owned by the State Highway Agency.