US Bridges

Old Sulpher Sprng over Grand Glaze CR

FairPosted for load

St. Louis County, Missouri · S 36 T 45 N R 4 E · Structure no. 20511

Built
1979
46 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
600
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Sulpher Sprng over Grand Glaze CR is a concrete continuous culvert carrying Old Sulpher Sprng over Grand Glaze CR in St. Louis County, Missouri. It was built in 1979, so it is 46 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. Its operating status is: posted for load restriction.

It carries about 600 vehicles a day, roughly 1% of them trucks, projected to reach 810 by 2043. The structure is 50 ft (15.2 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesOld Sulpher Sprng
CrossesGrand Glaze CR
LocationS 36 T 45 N R 4 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.5909, -90.51416
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadOther
Structure length50 ft (15.2 m)
Longest span16 ft (4.9 m)
Deck width46 ft (14 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic810 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Sulpher Sprng over Grand Glaze CR built?

It was built in 1979, making it 46 years old in 2025.

What condition is Old Sulpher Sprng over Grand Glaze 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 January 2024.

How much traffic does Old Sulpher Sprng over Grand Glaze CR carry?

About 600 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Old Sulpher Sprng over Grand Glaze CR?

The structure is 50 ft (15.2 m) long with a longest span of 16 ft (4.9 m) and a deck 46 ft wide.

Who owns Old Sulpher Sprng over Grand Glaze CR?

It is owned by the City or Municipal Highway Agency.