US Bridges

US0165 over Bayou Serpent

Good

Jefferson Davis Parish, Louisiana · 3.8 MI S of LA 3086 · Structure no. 072700000070192

Built
2008
17 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
236 ft
6 main spans
Daily traffic
8,453
2021 count
Owner
State
State Highway Agency

About this bridge

US0165 over Bayou Serpent is a prestressed concrete continuous stringer/multi-beam or girder carrying US0165 over Bayou Serpent in Jefferson Davis Parish, Louisiana. It was built in 2008, so it is 17 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 8,453 vehicles a day, roughly 16% of them trucks, projected to reach 9,298 by 2041. The structure is 236 ft (71.9 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0165
CrossesBayou Serpent
Location3.8 MI S of LA 3086
RouteU.S. Route 165
Coordinates30.38817, -92.90501
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span40 ft (12.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,453 (2021)
Projected traffic9,298 by 2041
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US0165 over Bayou Serpent built?

It was built in 2008, making it 17 years old in 2025.

What condition is US0165 over Bayou Serpent 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 2023.

How much traffic does US0165 over Bayou Serpent carry?

About 8,453 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is US0165 over Bayou Serpent?

The structure is 236 ft (71.9 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns US0165 over Bayou Serpent?

It is owned by the State Highway Agency.