US Bridges

Is 29 S over Rp IS29N to IS229S

Fair

Andrew County, Missouri · S 32 T 59 N R 35 W · Structure no. 991

Built
1965
60 years old, rebuilt 1986
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
209 ft
3 main spans
Daily traffic
13,410
2024 count
Owner
State
State Highway Agency

About this bridge

Is 29 S over Rp IS29N to IS229S is a concrete continuous box beam or girders - single or spread carrying Is 29 S over Rp IS29N to IS229S in Andrew County, Missouri. It was built in 1965 and reconstructed in 1986, so it is 60 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 13,410 vehicles a day, roughly 34% of them trucks, projected to reach 28,161 by 2044. The structure is 209 ft (63.7 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 29 S
CrossesRp IS29N to IS229S
LocationS 32 T 59 N R 35 W
RouteInterstate 29
CountyAndrew County
StateMissouri
Coordinates39.88621, -94.85842
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length209 ft (63.7 m)
Longest span79 ft (24.1 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,410 (2024)
Projected traffic28,161 by 2044
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 29 S over Rp IS29N to IS229S built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1986.

What condition is Is 29 S over Rp IS29N to IS229S 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 2024.

How much traffic does Is 29 S over Rp IS29N to IS229S carry?

About 13,410 vehicles per day (2024 count), of which roughly 34% are trucks.

How long is Is 29 S over Rp IS29N to IS229S?

The structure is 209 ft (63.7 m) long with a longest span of 79 ft (24.1 m) and a deck 40 ft wide.

Who owns Is 29 S over Rp IS29N to IS229S?

It is owned by the State Highway Agency.