US Bridges

Is 29 S over Cst NW 72nd ST

Good

Platte County, Missouri · S 18 T 51 N R 33 W · Structure no. 36964

Built
2023
2 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
117 ft
2 main spans
Daily traffic
42,489
2024 count
Owner
State
State Highway Agency

About this bridge

Is 29 S over Cst NW 72nd ST is a prestressed concrete continuous box beam or girders - single or spread carrying Is 29 S over Cst NW 72nd ST in Platte County, Missouri. It was built in 2023, so it is 2 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 42,489 vehicles a day, roughly 6% of them trucks, projected to reach 87,102 by 2044. The structure is 117 ft (35.6 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 29 S
CrossesCst NW 72nd ST
LocationS 18 T 51 N R 33 W
RouteInterstate 29
Coordinates39.22511, -94.65067
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating64.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length117 ft (35.6 m)
Longest span65 ft (19.8 m)
Deck width55 ft (16.9 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,489 (2024)
Projected traffic87,102 by 2044
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 29 S over Cst NW 72nd ST built?

It was built in 2023, making it 2 years old in 2025.

What condition is Is 29 S over Cst NW 72nd ST in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Is 29 S over Cst NW 72nd ST carry?

About 42,489 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Is 29 S over Cst NW 72nd ST?

The structure is 117 ft (35.6 m) long with a longest span of 65 ft (19.8 m) and a deck 55 ft wide.

Who owns Is 29 S over Cst NW 72nd ST?

It is owned by the State Highway Agency.