US Bridges

LA0001 over Tyson Branch

Good

Caddo Parish, Louisiana · 0.3 MI North of LA 168 · Structure no. 040900450306731

Built
1986
39 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
62 ft
5 main spans
Daily traffic
650
2021 count
Owner
State
State Highway Agency

About this bridge

LA0001 over Tyson Branch is a concrete culvert carrying LA0001 over Tyson Branch in Caddo Parish, Louisiana. It was built in 1986, so it is 39 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 650 vehicles a day, roughly 26% of them trucks, projected to reach 715 by 2041. The structure is 62 ft (18.9 m) long and 74 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesLA0001
CrossesTyson Branch
Location0.3 MI North of LA 168
RouteState Highway 1
Coordinates32.97577, -93.9976
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span8 ft (2.4 m)
Deck width74 ft (22.6 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2021)
Projected traffic715 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 LA0001 over Tyson Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is LA0001 over Tyson Branch 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 2024.

How much traffic does LA0001 over Tyson Branch carry?

About 650 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is LA0001 over Tyson Branch?

The structure is 62 ft (18.9 m) long with a longest span of 8 ft (2.4 m) and a deck 74 ft wide.

Who owns LA0001 over Tyson Branch?

It is owned by the State Highway Agency.