US Bridges

Cst NW Old Tiffany over I-29 Praire RD Is 29 I

Good

Platte County, Missouri · S 1 T 51 N R 34 W · Structure no. 35735

Built
2017
8 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
338 ft
3 main spans
Daily traffic
1,525
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cst NW Old Tiffany over I-29 Praire RD Is 29 I is a prestressed concrete continuous tee beam carrying Cst NW Old Tiffany over I-29 Praire RD Is 29 I in Platte County, Missouri. It was built in 2017, so it is 8 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,525 vehicles a day, roughly 2% of them trucks, projected to reach 2,898 by 2044. The structure is 338 ft (103 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCst NW Old Tiffany
CrossesI-29 Praire RD Is 29 I
LocationS 1 T 51 N R 34 W
RouteCity Street 0
Coordinates39.2609, -94.65985
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating92.3 US tons
Inventory rating33.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length338 ft (103 m)
Longest span130 ft (39.6 m)
Deck width76 ft (23.2 m)
Roadway width57 ft (17.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,525 (2024)
Projected traffic2,898 by 2044
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Cst NW Old Tiffany over I-29 Praire RD Is 29 I built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cst NW Old Tiffany over I-29 Praire RD Is 29 I 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 April 2024.

How much traffic does Cst NW Old Tiffany over I-29 Praire RD Is 29 I carry?

About 1,525 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Cst NW Old Tiffany over I-29 Praire RD Is 29 I?

The structure is 338 ft (103 m) long with a longest span of 130 ft (39.6 m) and a deck 76 ft wide.

Who owns Cst NW Old Tiffany over I-29 Praire RD Is 29 I?

It is owned by the City or Municipal Highway Agency.