US Bridges

Harrison Ave over UP RR

FairPosted for load

St. Louis County, Missouri · S 1 T 44 N R 5 E · Structure no. 19641

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
142 ft
3 main spans
Daily traffic
3,450
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harrison Ave over UP RR is a steel stringer/multi-beam or girder carrying Harrison Ave over UP RR in St. Louis County, Missouri. It was built in 1986, so it is 39 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 3,450 vehicles a day, roughly 1% of them trucks, projected to reach 4,658 by 2043. The structure is 142 ft (43.3 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHarrison Ave
CrossesUP RR
LocationS 1 T 44 N R 5 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.57951, -90.411
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span65 ft (19.8 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,450 (2023)
Projected traffic4,658 by 2043
Trucks1%
Lanes on structure2
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Harrison Ave over UP RR built?

It was built in 1986, making it 39 years old in 2025.

What condition is Harrison Ave over UP RR 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 January 2024.

How much traffic does Harrison Ave over UP RR carry?

About 3,450 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Harrison Ave over UP RR?

The structure is 142 ft (43.3 m) long with a longest span of 65 ft (19.8 m) and a deck 38 ft wide.

Who owns Harrison Ave over UP RR?

It is owned by the City or Municipal Highway Agency.