US Bridges

First ST over Trib to Coon CR

Fair

St. Clair County, Missouri · S 17 T 37 N R 26 W · Structure no. 22864

Built
1950
75 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

First ST over Trib to Coon CR is a concrete culvert carrying First ST over Trib to Coon CR in St. Clair County, Missouri. It was built in 1950, so it is 75 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2043. The structure is 26 ft (7.9 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFirst ST
CrossesTrib to Coon CR
LocationS 17 T 37 N R 26 W
RouteCity Street 0
CountySt. Clair County
StateMissouri
Coordinates37.97928, -93.80958
Functional classRural 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width39 ft (11.9 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic120 by 2043
Trucks10%
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 First ST over Trib to Coon CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is First ST over Trib to Coon 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 December 2023.

How much traffic does First ST over Trib to Coon CR carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is First ST over Trib to Coon CR?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m) and a deck 39 ft wide.

Who owns First ST over Trib to Coon CR?

It is owned by the County Highway Agency.