US Bridges

County RD 449 over Br of Lanes Fk

Fair

Maries County, Missouri · S 7 T 39 N R 7 W · Structure no. 16122

Built
1940
85 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
51 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 449 over Br of Lanes Fk is a concrete tee beam carrying County RD 449 over Br of Lanes Fk 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2043. The structure is 51 ft (15.5 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty RD 449
CrossesBr of Lanes Fk
LocationS 7 T 39 N R 7 W
RouteCounty Highway 110
CountyMaries County
StateMissouri
Coordinates38.11647, -91.72853
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 inspectionApril 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 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 rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length51 ft (15.5 m)
Longest span23 ft (7 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic60 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 449 over Br of Lanes Fk built?

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

What condition is County RD 449 over Br of Lanes Fk 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 449 over Br of Lanes Fk carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 449 over Br of Lanes Fk?

The structure is 51 ft (15.5 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.

Who owns County RD 449 over Br of Lanes Fk?

It is owned by the County Highway Agency.