US Bridges

Little Bay RD over Trib of Puncheon C

FairPosted for load

Gasconade County, Missouri · S 32 T 44 N R 5 W · Structure no. 13515

Built
1945
80 years old, rebuilt 1960
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Little Bay RD over Trib of Puncheon C is a steel stringer/multi-beam or girder carrying Little Bay RD over Trib of Puncheon C in Gasconade County, Missouri. It was built in 1945 and reconstructed in 1960, so it is 80 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. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2044. The structure is 28 ft (8.5 m) long and 17 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLittle Bay RD
CrossesTrib of Puncheon C
LocationS 32 T 44 N R 5 W
RouteCounty Highway 40
CountyGasconade County
StateMissouri
Coordinates38.51953, -91.50342
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
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.9 US tons
Inventory rating4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic48 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$272,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Bay RD over Trib of Puncheon C built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1960.

What condition is Little Bay RD over Trib of Puncheon C 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 Little Bay RD over Trib of Puncheon C carry?

About 40 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Little Bay RD over Trib of Puncheon C?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 17 ft wide.

Who owns Little Bay RD over Trib of Puncheon C?

It is owned by the County Highway Agency.