US Bridges

Is 29 N over Rt T

Fair

Andrew County, Missouri · S 25 T 59 N R 35 W · Structure no. 1066

Built
1965
60 years old, rebuilt 1991
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
105 ft
3 main spans
Daily traffic
12,803
2024 count
Owner
State
State Highway Agency

About this bridge

Is 29 N over Rt T is a concrete continuous slab carrying Is 29 N over Rt T in Andrew County, Missouri. It was built in 1965 and reconstructed in 1991, 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 6 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 12,803 vehicles a day, roughly 36% of them trucks, projected to reach 26,886 by 2044. The structure is 105 ft (32 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 29 N
CrossesRt T
LocationS 25 T 59 N R 35 W
RouteInterstate 29
Coordinates39.90384, -94.88468
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length105 ft (32 m)
Longest span45 ft (13.7 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,803 (2024)
Projected traffic26,886 by 2044
Trucks36%
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 N over Rt T built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1991.

What condition is Is 29 N over Rt T 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 N over Rt T carry?

About 12,803 vehicles per day (2024 count), of which roughly 36% are trucks.

How long is Is 29 N over Rt T?

The structure is 105 ft (32 m) long with a longest span of 45 ft (13.7 m) and a deck 40 ft wide.

Who owns Is 29 N over Rt T?

It is owned by the State Highway Agency.