US Bridges

US0165 over Bayou Serpent

Good

Jefferson Davis Parish, Louisiana · 1.7 MI N of LA 102 · Structure no. 072700000070220

Built
2017
8 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
280 ft
7 main spans
Daily traffic
11,886
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 2017, so it is 8 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 11,886 vehicles a day, roughly 16% of them trucks, projected to reach 13,074 by 2041. The structure is 280 ft (85.3 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesUS0165
CrossesBayou Serpent
Location1.7 MI N of LA 102
RouteU.S. Route 165
Coordinates30.38737, -92.9051
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 protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating75.4 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,886 (2021)
Projected traffic13,074 by 2041
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US0165 over Bayou Serpent built?

It was built in 2017, making it 8 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 July 2023.

How much traffic does US0165 over Bayou Serpent carry?

About 11,886 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is US0165 over Bayou Serpent?

The structure is 280 ft (85.3 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns US0165 over Bayou Serpent?

It is owned by the State Highway Agency.