US Bridges

Dublin ST over Metairie Relief Canal

Good

Orleans Parish, Louisiana · 1 Mile West of Carrollton · Structure no. 023604509002253

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Girder and Floorbeam System
Steel
Length
87 ft
1 main span
Daily traffic
12,220
2015 count
Owner
State
State Highway Agency

About this bridge

Dublin ST over Metairie Relief Canal is a steel girder and floorbeam system carrying Dublin ST over Metairie Relief Canal in Orleans Parish, Louisiana. It was built in 2006, so it is 19 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 12,220 vehicles a day, projected to reach 13,442 by 2035. The structure is 87 ft (26.5 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDublin ST
CrossesMetairie Relief Canal
Location1 Mile West of Carrollton
RouteInterstate 10
CountyOrleans Parish
StateLouisiana
Coordinates29.96672, -90.11086
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating32.2 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span87 ft (26.5 m)
Deck width46 ft (13.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,220 (2015)
Projected traffic13,442 by 2035
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$439,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dublin ST over Metairie Relief Canal built?

It was built in 2006, making it 19 years old in 2025.

What condition is Dublin ST over Metairie Relief 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 July 2023.

How much traffic does Dublin ST over Metairie Relief Canal carry?

About 12,220 vehicles per day (2015 count).

How long is Dublin ST over Metairie Relief Canal?

The structure is 87 ft (26.5 m) long with a longest span of 87 ft (26.5 m) and a deck 46 ft wide.

Who owns Dublin ST over Metairie Relief Canal?

It is owned by the State Highway Agency.