US Bridges

County RD DD-447 over Ltl Beaver CR

Fair

Douglas County, Missouri · S 15 T 25 N R 18 W · Structure no. 18746

Built
1939
86 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
65 ft
3 main spans
Daily traffic
80
2024 count
Owner
County
County Highway Agency

About this bridge

County RD DD-447 over Ltl Beaver CR is a concrete slab carrying County RD DD-447 over Ltl Beaver CR in Douglas County, Missouri. It was built in 1939, so it is 86 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 80 vehicles a day, roughly 10% of them trucks, projected to reach 116 by 2044. The structure is 65 ft (19.8 m) long and 14 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty RD DD-447
CrossesLtl Beaver CR
LocationS 15 T 25 N R 18 W
RouteCounty Highway 197
CountyDouglas County
StateMissouri
Coordinates36.85374, -92.89856
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length65 ft (19.8 m)
Longest span21 ft (6.4 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2024)
Projected traffic116 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 County RD DD-447 over Ltl Beaver CR built?

It was built in 1939, making it 86 years old in 2025.

What condition is County RD DD-447 over Ltl Beaver 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 February 2024.

How much traffic does County RD DD-447 over Ltl Beaver CR carry?

About 80 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD DD-447 over Ltl Beaver CR?

The structure is 65 ft (19.8 m) long with a longest span of 21 ft (6.4 m) and a deck 14 ft wide.

Who owns County RD DD-447 over Ltl Beaver CR?

It is owned by the County Highway Agency.