US Bridges

W. 74th ST over 71st Street Ditch

Fair

Caddo Parish, Louisiana · 0.9 MI S of HWY 511 · Structure no. 040932262934591

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
50
1989 count
Owner
City
City or Municipal Highway Agency

About this bridge

W. 74th ST over 71st Street Ditch is a concrete culvert carrying W. 74th ST over 71st Street Ditch in Caddo Parish, Louisiana. It was built in 1963, so it is 62 years old, older 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 50 vehicles a day, projected to reach 55 by 2009. The structure is 22 ft (6.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW. 74th ST
Crosses71st Street Ditch
Location0.9 MI S of HWY 511
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.43795, -93.76954
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width50 ft (15.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1989)
Projected traffic55 by 2009
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 W. 74th ST over 71st Street Ditch built?

It was built in 1963, making it 62 years old in 2025.

What condition is W. 74th ST over 71st Street Ditch 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 W. 74th ST over 71st Street Ditch carry?

About 50 vehicles per day (1989 count).

How long is W. 74th ST over 71st Street Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns W. 74th ST over 71st Street Ditch?

It is owned by the City or Municipal Highway Agency.