US Bridges

Big Bend Blvd over Deer CR

FairPosted for load

St. Louis County, Missouri · S 27 T 45 N R 6 E · Structure no. 15638

Built
1959
66 years old, rebuilt 2003
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
192 ft
3 main spans
Daily traffic
25,659
2024 count
Owner
County
County Highway Agency

About this bridge

Big Bend Blvd over Deer CR is a steel stringer/multi-beam or girder carrying Big Bend Blvd over Deer CR in St. Louis County, Missouri. It was built in 1959 and reconstructed in 2003, so it is 66 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. Its operating status is: posted for load restriction.

It carries about 25,659 vehicles a day, roughly 10% of them trucks, projected to reach 34,640 by 2044. The structure is 192 ft (58.5 m) long and 73 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesBig Bend Blvd
CrossesDeer CR
LocationS 27 T 45 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.60133, -90.32611
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating75.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length192 ft (58.5 m)
Longest span73 ft (22.1 m)
Deck width73 ft (22.4 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,659 (2024)
Projected traffic34,640 by 2044
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Big Bend Blvd over Deer CR built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2003.

What condition is Big Bend Blvd over Deer CR 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 May 2024.

How much traffic does Big Bend Blvd over Deer CR carry?

About 25,659 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Big Bend Blvd over Deer CR?

The structure is 192 ft (58.5 m) long with a longest span of 73 ft (22.1 m) and a deck 73 ft wide.

Who owns Big Bend Blvd over Deer CR?

It is owned by the County Highway Agency.