US Bridges

Coles Creek RD over Trib of Missouri R

FairPosted for load

Gasconade County, Missouri · S 4 T 45 N R 5 W · Structure no. 12361

Built
1943
82 years old, rebuilt 1971
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
48
2024 count
Owner
County
County Highway Agency

About this bridge

Coles Creek RD over Trib of Missouri R is a steel stringer/multi-beam or girder carrying Coles Creek RD over Trib of Missouri R in Gasconade County, Missouri. It was built in 1943 and reconstructed in 1971, so it is 82 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. Its operating status is: posted for load restriction.

It carries about 48 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2044. The structure is 42 ft (12.8 m) long and 18 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesColes Creek RD
CrossesTrib of Missouri R
LocationS 4 T 45 N R 5 W
RouteCounty Highway 7
Coordinates38.67978, -91.49239
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.8 US tons
Inventory rating12.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2024)
Projected traffic58 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$366,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Coles Creek RD over Trib of Missouri R built?

It was built in 1943, making it 82 years old in 2025. It was reconstructed in 1971.

What condition is Coles Creek RD over Trib of Missouri R 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 March 2024.

How much traffic does Coles Creek RD over Trib of Missouri R carry?

About 48 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Coles Creek RD over Trib of Missouri R?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 18 ft wide.

Who owns Coles Creek RD over Trib of Missouri R?

It is owned by the County Highway Agency.