US Bridges

Dietrich RD over Grand Glaize CR

FairPosted for load

St. Louis County, Missouri · S 32 T 45 N R 5 E · Structure no. 15610

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
4,077
2024 count
Owner
County
County Highway Agency

About this bridge

Dietrich RD over Grand Glaize CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Dietrich RD over Grand Glaize CR in St. Louis County, Missouri. It was built in 1997, so it is 28 years old, younger 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 4,077 vehicles a day, roughly 2% of them trucks, projected to reach 5,504 by 2044. The structure is 113 ft (34.4 m) long and 57 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesDietrich RD
CrossesGrand Glaize CR
LocationS 32 T 45 N R 5 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.59516, -90.48745
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating98.2 US tons
Inventory rating72.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span50 ft (15.2 m)
Deck width57 ft (17.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,077 (2024)
Projected traffic5,504 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dietrich RD over Grand Glaize CR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Dietrich RD over 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 April 2024.

How much traffic does Dietrich RD over Grand Glaize CR carry?

About 4,077 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Dietrich RD over Grand Glaize CR?

The structure is 113 ft (34.4 m) long with a longest span of 50 ft (15.2 m) and a deck 57 ft wide.

Who owns Dietrich RD over Grand Glaize CR?

It is owned by the County Highway Agency.