US Bridges

W. 79th ST over 81st Street Ditch

FairPosted for load

Caddo Parish, Louisiana · 1.3 MI N of HWY 3212 · Structure no. 040932260934541

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
100
1989 count
Owner
City
City or Municipal Highway Agency

About this bridge

W. 79th ST over 81st Street Ditch is a concrete culvert carrying W. 79th ST over 81st Street Ditch in Caddo Parish, Louisiana. It was built in 1980, so it is 45 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, projected to reach 110 by 2009. The structure is 23 ft (7 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW. 79th ST
Crosses81st Street Ditch
Location1.3 MI N of HWY 3212
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.43272, -93.75755
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1989)
Projected traffic110 by 2009
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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. 79th ST over 81st Street Ditch built?

It was built in 1980, making it 45 years old in 2025.

What condition is W. 79th ST over 81st 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. 79th ST over 81st Street Ditch carry?

About 100 vehicles per day (1989 count).

How long is W. 79th ST over 81st Street Ditch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns W. 79th ST over 81st Street Ditch?

It is owned by the City or Municipal Highway Agency.