US Bridges

Grand Ave over UP RR

PoorPosted for load

St. Louis city, Missouri · S 3102 T 44 N R 7 E · Structure no. 12877

Built
1913
112 years old
Condition
Poor
inspected March 2024
Type
Arch - Deck
Concrete
Length
95 ft
1 main span
Daily traffic
10,200
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grand Ave over UP RR is a concrete arch - deck carrying Grand Ave over UP RR in St. Louis city, Missouri. It was built in 1913, so it is 112 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10,200 vehicles a day, roughly 5% of them trucks, projected to reach 13,770 by 2043. The structure is 95 ft (29 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesGrand Ave
CrossesUP RR
LocationS 3102 T 44 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.56243, -90.26017
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.6 US tons
Inventory rating40.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length95 ft (29 m)
Longest span95 ft (29 m)
Deck width64 ft (19.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,200 (2023)
Projected traffic13,770 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Grand Ave over UP RR built?

It was built in 1913, making it 112 years old in 2025.

What condition is Grand Ave over UP RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Grand Ave over UP RR carry?

About 10,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Grand Ave over UP RR?

The structure is 95 ft (29 m) long with a longest span of 95 ft (29 m) and a deck 64 ft wide.

Who owns Grand Ave over UP RR?

It is owned by the City or Municipal Highway Agency.