US Bridges

Jacob DR over 20 Arpent Canal

Fair

St. Bernard Parish, Louisiana · 0.4 Mi. N. of LA 39 · Structure no. 024400000000009

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
863
2023 count
Owner
County
County Highway Agency

About this bridge

Jacob DR over 20 Arpent Canal is a concrete slab carrying Jacob DR over 20 Arpent Canal in St. Bernard Parish, Louisiana. It was built in 1997, so it is 28 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 863 vehicles a day, projected to reach 949 by 2043. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJacob DR
Crosses20 Arpent Canal
Location0.4 Mi. N. of LA 39
RouteCity Street 0
CountySt. Bernard Parish
StateLouisiana
Coordinates29.94374, -89.93917
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic863 (2023)
Projected traffic949 by 2043
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

OwnerCounty Highway Agency
Maintained byCounty 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 Jacob DR over 20 Arpent Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is Jacob DR over 20 Arpent Canal 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 March 2023.

How much traffic does Jacob DR over 20 Arpent Canal carry?

About 863 vehicles per day (2023 count).

How long is Jacob DR over 20 Arpent Canal?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Jacob DR over 20 Arpent Canal?

It is owned by the County Highway Agency.