US Bridges

US 169 S over Is 29

Fair

Clay County, Missouri · S 34 T 51 N R 33 W · Structure no. 1307

Built
1965
60 years old, rebuilt 1989
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
159 ft
3 main spans
Daily traffic
28,308
2024 count
Owner
State
State Highway Agency

About this bridge

US 169 S over Is 29 is a concrete continuous slab carrying US 169 S over Is 29 in Clay County, Missouri. It was built in 1965 and reconstructed in 1989, 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 28,308 vehicles a day, roughly 4% of them trucks, projected to reach 50,954 by 2044. The structure is 159 ft (48.5 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 169 S
CrossesIs 29
LocationS 34 T 51 N R 33 W
RouteU.S. Route 169
CountyClay County
StateMissouri
Coordinates39.18338, -94.59306
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating104.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.5 m)
Longest span62 ft (18.9 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic28,308 (2024)
Projected traffic50,954 by 2044
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 US 169 S over Is 29 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1989.

What condition is US 169 S over Is 29 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 US 169 S over Is 29 carry?

About 28,308 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is US 169 S over Is 29?

The structure is 159 ft (48.5 m) long with a longest span of 62 ft (18.9 m) and a deck 34 ft wide.

Who owns US 169 S over Is 29?

It is owned by the State Highway Agency.