US Bridges

Dowd RD over Drainage Canal

Fair

Morehouse Parish, Louisiana · 0.4 MI W of LA 138 · Structure no. 053432418915171

Built
2008
17 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
38 ft
4 main spans
Daily traffic
500
2016 count
Owner
County
County Highway Agency

About this bridge

Dowd RD over Drainage Canal is a concrete culvert carrying Dowd RD over Drainage Canal in Morehouse Parish, Louisiana. It was built in 2008, so it is 17 years old, younger than the Louisiana average of 43 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 500 vehicles a day, projected to reach 550 by 2036. The structure is 38 ft (11.6 m) long and 48 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesDowd RD
CrossesDrainage Canal
Location0.4 MI W of LA 138
RouteCounty Highway 0
Coordinates32.69626, -91.88038
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span8 ft (2.4 m)
Deck width48 ft (14.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2016)
Projected traffic550 by 2036
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dowd RD over Drainage Canal built?

It was built in 2008, making it 17 years old in 2025.

What condition is Dowd RD over Drainage Canal 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 October 2024.

How much traffic does Dowd RD over Drainage Canal carry?

About 500 vehicles per day (2016 count).

How long is Dowd RD over Drainage Canal?

The structure is 38 ft (11.6 m) long with a longest span of 8 ft (2.4 m) and a deck 48 ft wide.

Who owns Dowd RD over Drainage Canal?

It is owned by the County Highway Agency.