US Bridges

Castlegate DR over Trib of Glaize CR

Fair

Jefferson County, Missouri · S 24 T 42 N R 5 E · Structure no. 35989

Built
1996
29 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

Castlegate DR over Trib of Glaize CR is a concrete culvert carrying Castlegate DR over Trib of Glaize CR in Jefferson County, Missouri. It was built in 1996, so it is 29 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.

It carries about 300 vehicles a day, roughly 1% of them trucks, projected to reach 510 by 2043. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCastlegate DR
CrossesTrib of Glaize CR
LocationS 24 T 42 N R 5 E
RouteCounty Highway 807
CountyJefferson County
StateMissouri
Coordinates38.35583, -90.41361
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic510 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Castlegate DR over Trib of Glaize CR built?

It was built in 1996, making it 29 years old in 2025.

What condition is Castlegate DR over Trib of 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 January 2025.

How much traffic does Castlegate DR over Trib of Glaize CR carry?

About 300 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Castlegate DR over Trib of Glaize CR?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns Castlegate DR over Trib of Glaize CR?

It is owned by the County Highway Agency.