US Bridges

Mo 100 E over Br Grand Glaize CR

Fair

St. Louis County, Missouri · S 32 T 45 N R 5 E · Structure no. 4452

Built
1920
105 years old, rebuilt 1999
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
30 ft
3 main spans
Daily traffic
40,045
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 100 E over Br Grand Glaize CR is a concrete continuous culvert carrying Mo 100 E over Br Grand Glaize CR in St. Louis County, Missouri. It was built in 1920 and reconstructed in 1999, so it is 105 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 40,045 vehicles a day, roughly 13% of them trucks, projected to reach 56,063 by 2044. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMo 100 E
CrossesBr Grand Glaize CR
LocationS 32 T 45 N R 5 E
RouteState Highway 100
CountySt. Louis County
StateMissouri
Coordinates38.59641, -90.47612
Functional classUrban Other Principal 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length30 ft (9.1 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,045 (2024)
Projected traffic56,063 by 2044
Trucks13%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 100 E over Br Grand Glaize CR built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1999.

What condition is Mo 100 E over Br Grand Glaize 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 November 2023.

How much traffic does Mo 100 E over Br Grand Glaize CR carry?

About 40,045 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 100 E over Br Grand Glaize CR?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.8 m).

Who owns Mo 100 E over Br Grand Glaize CR?

It is owned by the State Highway Agency.