US Bridges

Mo 100 E over Fox CR

Fair

St. Louis County, Missouri · S 19 T 44 N R 3 E · Structure no. 2386

Built
1977
48 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
10,779
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 100 E over Fox CR is a concrete continuous culvert carrying Mo 100 E over Fox CR in St. Louis County, Missouri. It was built in 1977, so it is 48 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 10,779 vehicles a day, roughly 6% of them trucks, projected to reach 13,474 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesMo 100 E
CrossesFox CR
LocationS 19 T 44 N R 3 E
RouteState Highway 100
CountySt. Louis County
StateMissouri
Coordinates38.5387, -90.72337
Functional classRural Principal Arterial - Other

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 protection4 PoorAdvanced section loss, deterioration, 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 within limits of footing or piles
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,779 (2024)
Projected traffic13,474 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Fox CR built?

It was built in 1977, making it 48 years old in 2025.

What condition is Mo 100 E over Fox 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 Fox CR carry?

About 10,779 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 100 E over Fox CR?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m).

Who owns Mo 100 E over Fox CR?

It is owned by the State Highway Agency.