US Bridges

ST Paul RD over Spring Br

Fair

St. Louis County, Missouri · S 9 T 44 N R 4 E · Structure no. 15660

Built
1965
60 years old, rebuilt 2011
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
840
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

ST Paul RD over Spring Br is a steel stringer/multi-beam or girder carrying ST Paul RD over Spring Br in St. Louis County, Missouri. It was built in 1965 and reconstructed in 2011, so it is 60 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 5 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 840 vehicles a day, roughly 2% of them trucks, projected to reach 1,134 by 2043. The structure is 50 ft (15.2 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesST Paul RD
CrossesSpring Br
LocationS 9 T 44 N R 4 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.56154, -90.57679
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating94.2 US tons
Inventory rating56.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span45 ft (13.7 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2023)
Projected traffic1,134 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Paul RD over Spring Br built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2011.

What condition is ST Paul RD over Spring Br 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 ST Paul RD over Spring Br carry?

About 840 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is ST Paul RD over Spring Br?

The structure is 50 ft (15.2 m) long with a longest span of 45 ft (13.7 m) and a deck 24 ft wide.

Who owns ST Paul RD over Spring Br?

It is owned by the City or Municipal Highway Agency.