US Bridges

Columbia Street over Gilbert Ditch

Good

Caddo Parish, Louisiana · 0.1 MI E of Line Avenue · Structure no. 040932290934461

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
—
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbia Street over Gilbert Ditch is a concrete culvert carrying Columbia Street over Gilbert Ditch in Caddo Parish, Louisiana. It was built in 1998, so it is 27 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 21 ft (6.4 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesColumbia Street
CrossesGilbert Ditch
Location0.1 MI E of Line Avenue
RouteCounty Highway 0
Coordinates32.48366, -93.7436
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Columbia Street over Gilbert Ditch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Columbia Street over Gilbert Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Columbia Street over Gilbert Ditch carry?

No traffic count is recorded for this structure.

How long is Columbia Street over Gilbert Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 25 ft wide.

Who owns Columbia Street over Gilbert Ditch?

It is owned by the City or Municipal Highway Agency.