US Bridges

Gilbert Drive over Pierremont Ditch

Fair

Caddo Parish, Louisiana · 0.5 Mi. North of LA 511 · Structure no. 040932269934421

Built
1984
41 years old
Condition
Fair
inspected April 2023
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
100
1989 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gilbert Drive over Pierremont Ditch is a concrete channel beam carrying Gilbert Drive over Pierremont Ditch in Caddo Parish, Louisiana. It was built in 1984, so it is 41 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 100 vehicles a day, projected to reach 110 by 2009. The structure is 32 ft (9.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGilbert Drive
CrossesPierremont Ditch
Location0.5 Mi. North of LA 511
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.4483, -93.73738
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.7 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
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 Gilbert Drive over Pierremont Ditch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Gilbert Drive over Pierremont 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 Gilbert Drive over Pierremont Ditch carry?

About 100 vehicles per day (1989 count).

How long is Gilbert Drive over Pierremont Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 44 ft wide.

Who owns Gilbert Drive over Pierremont Ditch?

It is owned by the City or Municipal Highway Agency.