US Bridges

Bordelon RD over I-10

Fair

St. Martin Parish, Louisiana · 1.5 MI West of LA 347 · Structure no. 035004500605851

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
820 ft
2 main spans
Daily traffic
2,970
2019 count
Owner
State
State Highway Agency

About this bridge

Bordelon RD over I-10 is a prestressed concrete stringer/multi-beam or girder carrying Bordelon RD over I-10 in St. Martin Parish, Louisiana. It was built in 1970, so it is 55 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 2,970 vehicles a day, projected to reach 3,267 by 2039. The structure is 820 ft (249.9 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesBordelon RD
CrossesI-10
Location1.5 MI West of LA 347
RouteCounty Highway 0
CountySt. Martin Parish
StateLouisiana
Coordinates30.31118, -91.86004
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+10 approach)
Design loadHS 20
Structure length820 ft (249.9 m)
Longest span83 ft (25.3 m)
Deck width31 ft (9.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,970 (2019)
Projected traffic3,267 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bordelon RD over I-10 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Bordelon RD over I-10 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 August 2024.

How much traffic does Bordelon RD over I-10 carry?

About 2,970 vehicles per day (2019 count).

How long is Bordelon RD over I-10?

The structure is 820 ft (249.9 m) long with a longest span of 83 ft (25.3 m) and a deck 31 ft wide.

Who owns Bordelon RD over I-10?

It is owned by the State Highway Agency.