US Bridges

Palmetto ST over 17 TH Street Canal

Good

Jefferson Parish, Louisiana · 0.01M North of Orpheum · Structure no. 022629586900751

Built
1991
34 years old
Condition
Good
inspected May 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
199 ft
1 main span
Daily traffic
1,000
1989 count
Owner
County
County Highway Agency

About this bridge

Palmetto ST over 17 TH Street Canal is a steel continuous girder and floorbeam system carrying Palmetto ST over 17 TH Street Canal in Jefferson Parish, Louisiana. It was built in 1991, so it is 34 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.

It carries about 1,000 vehicles a day, projected to reach 1,100 by 2009. The structure is 199 ft (60.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPalmetto ST
Crosses17 TH Street Canal
Location0.01M North of Orpheum
RouteCounty Highway 0
Coordinates29.97623, -90.12512
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length199 ft (60.7 m)
Longest span199 ft (60.7 m)
Deck width36 ft (11 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (1989)
Projected traffic1,100 by 2009
Trucks—
Lanes on structure2
Traffic directionOne-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 Palmetto ST over 17 TH Street Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is Palmetto ST over 17 TH Street Canal 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 May 2023.

How much traffic does Palmetto ST over 17 TH Street Canal carry?

About 1,000 vehicles per day (1989 count).

How long is Palmetto ST over 17 TH Street Canal?

The structure is 199 ft (60.7 m) long with a longest span of 199 ft (60.7 m) and a deck 36 ft wide.

Who owns Palmetto ST over 17 TH Street Canal?

It is owned by the County Highway Agency.