US Bridges

County RD 448 over Little Bourbeuse C

FairPosted for load

Maries County, Missouri · S 9 T 39 N R 7 W · Structure no. 15236

Built
1940
85 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 448 over Little Bourbeuse C is a concrete tee beam carrying County RD 448 over Little Bourbeuse C in Maries County, Missouri. It was built in 1940, so it is 85 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 42 by 2043. The structure is 120 ft (36.6 m) long and 23 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCounty RD 448
CrossesLittle Bourbeuse C
LocationS 9 T 39 N R 7 W
RouteCounty Highway 88
CountyMaries County
StateMissouri
Coordinates38.11808, -91.70047
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.8 US tons
Inventory rating7.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length120 ft (36.6 m)
Longest span50 ft (15.2 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic42 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-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$838,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 448 over Little Bourbeuse C built?

It was built in 1940, making it 85 years old in 2025.

What condition is County RD 448 over Little Bourbeuse 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 April 2023.

How much traffic does County RD 448 over Little Bourbeuse C carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 448 over Little Bourbeuse C?

The structure is 120 ft (36.6 m) long with a longest span of 50 ft (15.2 m) and a deck 23 ft wide.

Who owns County RD 448 over Little Bourbeuse C?

It is owned by the County Highway Agency.