US Bridges

LA0164 over Dorcheat Bayou

Fair

Webster Parish, Louisiana · 4.64 MI East of LA 163 · Structure no. 046001220304641

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
704 ft
14 main spans
Daily traffic
3,472
2021 count
Owner
State
State Highway Agency

About this bridge

LA0164 over Dorcheat Bayou is a prestressed concrete continuous stringer/multi-beam or girder carrying LA0164 over Dorcheat Bayou in Webster Parish, Louisiana. It was built in 1981, so it is 44 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 3,472 vehicles a day, roughly 19% of them trucks, projected to reach 3,819 by 2041. The structure is 704 ft (214.6 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA0164
CrossesDorcheat Bayou
Location4.64 MI East of LA 163
RouteState Highway 164
CountyWebster Parish
StateLouisiana
Coordinates32.53735, -93.3321
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20
Structure length704 ft (214.6 m)
Longest span50 ft (15.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,472 (2021)
Projected traffic3,819 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0164 over Dorcheat Bayou built?

It was built in 1981, making it 44 years old in 2025.

What condition is LA0164 over Dorcheat Bayou 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 July 2023.

How much traffic does LA0164 over Dorcheat Bayou carry?

About 3,472 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0164 over Dorcheat Bayou?

The structure is 704 ft (214.6 m) long with a longest span of 50 ft (15.2 m) and a deck 43 ft wide.

Who owns LA0164 over Dorcheat Bayou?

It is owned by the State Highway Agency.