US Bridges

Melvin Dupris RD over I-10

Good

St. Martin Parish, Louisiana · 0.28 MI W of LA 347 · Structure no. 035000000000019

Built
2022
3 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
844 ft
8 main spans
Daily traffic
1,329
2004 count
Owner
State
State Highway Agency

About this bridge

Melvin Dupris RD over I-10 is a prestressed concrete stringer/multi-beam or girder carrying Melvin Dupris RD over I-10 in St. Martin Parish, Louisiana. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,329 vehicles a day, projected to reach 1,461 by 2024. The structure is 844 ft (257.3 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesMelvin Dupris RD
CrossesI-10
Location0.28 MI W of LA 347
RouteCounty Highway 0
CountySt. Martin Parish
StateLouisiana
Coordinates30.3133, -91.83922
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckWood or timber
Main spans8
Design loadGreater than HL 93
Structure length844 ft (257.3 m)
Longest span119 ft (36.3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,329 (2004)
Projected traffic1,461 by 2024
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Melvin Dupris RD over I-10 built?

It was built in 2022, making it 3 years old in 2025.

What condition is Melvin Dupris RD over I-10 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 January 2025.

How much traffic does Melvin Dupris RD over I-10 carry?

About 1,329 vehicles per day (2004 count).

How long is Melvin Dupris RD over I-10?

The structure is 844 ft (257.3 m) long with a longest span of 119 ft (36.3 m) and a deck 34 ft wide.

Who owns Melvin Dupris RD over I-10?

It is owned by the State Highway Agency.