US Bridges

Spanish Pond RD over BNSF RR

Fair

St. Louis County, Missouri · S 22 T 47 N R 7 E · Structure no. 15537

Built
1960
65 years old, rebuilt 2023
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
136 ft
3 main spans
Daily traffic
1,947
2024 count
Owner
County
County Highway Agency

About this bridge

Spanish Pond RD over BNSF RR is a steel stringer/multi-beam or girder carrying Spanish Pond RD over BNSF RR in St. Louis County, Missouri. It was built in 1960 and reconstructed in 2023, so it is 65 years old, older 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,947 vehicles a day, roughly 3% of them trucks, projected to reach 2,628 by 2044. The structure is 136 ft (41.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSpanish Pond RD
CrossesBNSF RR
LocationS 22 T 47 N R 7 E
RouteCounty Highway 0
Coordinates38.79965, -90.20792
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating103.2 US tons
Inventory rating61.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,947 (2024)
Projected traffic2,628 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Spanish Pond RD over BNSF RR built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2023.

What condition is Spanish Pond RD over BNSF 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 February 2024.

How much traffic does Spanish Pond RD over BNSF RR carry?

About 1,947 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Spanish Pond RD over BNSF RR?

The structure is 136 ft (41.5 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Spanish Pond RD over BNSF RR?

It is owned by the County Highway Agency.