US Bridges

Gilbert at Fern over Ockley Ditch

FairPosted for load

Caddo Parish, Louisiana · 1.1 Mi. No.Of Pierre · Structure no. 040932282934421

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Girder and Floorbeam System
Steel
Length
93 ft
1 main span
Daily traffic
2,480
1980 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gilbert at Fern over Ockley Ditch is a steel girder and floorbeam system carrying Gilbert at Fern over Ockley Ditch in Caddo Parish, Louisiana. It was built in 1964, so it is 61 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 5 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 2,480 vehicles a day, projected to reach 2,728 by 2000. The structure is 93 ft (28.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGilbert at Fern
CrossesOckley Ditch
Location1.1 Mi. No.Of Pierre
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.47065, -93.73743
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating11.5 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span90 ft (27.4 m)
Deck width53 ft (16.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,480 (1980)
Projected traffic2,728 by 2000
Trucks—
Lanes on structure4
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$490,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Gilbert at Fern over Ockley Ditch built?

It was built in 1964, making it 61 years old in 2025.

What condition is Gilbert at Fern over Ockley 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 at Fern over Ockley Ditch carry?

About 2,480 vehicles per day (1980 count).

How long is Gilbert at Fern over Ockley Ditch?

The structure is 93 ft (28.3 m) long with a longest span of 90 ft (27.4 m) and a deck 53 ft wide.

Who owns Gilbert at Fern over Ockley Ditch?

It is owned by the City or Municipal Highway Agency.