US Bridges

Kingshighway Blvd over Trra RR

Good

St. Louis city, Missouri · S 32 T 46 N R 7 E · Structure no. 29762

Built
2003
22 years old
Condition
Good
inspected March 2023
Type
Arch - Deck
Concrete
Length
54 ft
1 main span
Daily traffic
27,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kingshighway Blvd over Trra RR is a concrete arch - deck carrying Kingshighway Blvd over Trra RR in St. Louis city, Missouri. It was built in 2003, so it is 22 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 27,000 vehicles a day, roughly 5% of them trucks, projected to reach 36,450 by 2043. The structure is 54 ft (16.5 m) long and 94 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesKingshighway Blvd
CrossesTrra RR
LocationS 32 T 46 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.68426, -90.24737
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.5 m)
Longest span48 ft (14.6 m)
Deck width94 ft (28.7 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,000 (2023)
Projected traffic36,450 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$811,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kingshighway Blvd over Trra RR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Kingshighway Blvd over Trra RR 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 March 2023.

How much traffic does Kingshighway Blvd over Trra RR carry?

About 27,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Kingshighway Blvd over Trra RR?

The structure is 54 ft (16.5 m) long with a longest span of 48 ft (14.6 m) and a deck 94 ft wide.

Who owns Kingshighway Blvd over Trra RR?

It is owned by the City or Municipal Highway Agency.