US Bridges

I0020 over Gourd Bayou

Fair

Ouachita Parish, Louisiana · 7.1 MI East of US 165 · Structure no. 053704510626901

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
33 ft
5 main spans
Daily traffic
43,420
2021 count
Owner
State
State Highway Agency

About this bridge

I0020 over Gourd Bayou is a concrete culvert carrying I0020 over Gourd Bayou in Ouachita Parish, Louisiana. It was built in 1968, so it is 57 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 43,420 vehicles a day, roughly 37% of them trucks, projected to reach 47,762 by 2041. The structure is 33 ft (10.1 m) long and 155 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI0020
CrossesGourd Bayou
Location7.1 MI East of US 165
RouteInterstate 20
Coordinates32.48664, -91.964
Functional classRural Principal Arterial - Interstate

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span6 ft (1.8 m)
Deck width155 ft (47.2 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,420 (2021)
Projected traffic47,762 by 2041
Trucks37%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I0020 over Gourd Bayou built?

It was built in 1968, making it 57 years old in 2025.

What condition is I0020 over Gourd Bayou 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 October 2024.

How much traffic does I0020 over Gourd Bayou carry?

About 43,420 vehicles per day (2021 count), of which roughly 37% are trucks.

How long is I0020 over Gourd Bayou?

The structure is 33 ft (10.1 m) long with a longest span of 6 ft (1.8 m) and a deck 155 ft wide.

Who owns I0020 over Gourd Bayou?

It is owned by the State Highway Agency.