US Bridges

US0079 over Cooley Branch

Good

Webster Parish, Louisiana · 1.9 MI East of LA 531 · Structure no. 046000270402981

Built
1932
93 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
33 ft
5 main spans
Daily traffic
9,942
2021 count
Owner
State
State Highway Agency

About this bridge

US0079 over Cooley Branch is a concrete culvert carrying US0079 over Cooley Branch in Webster Parish, Louisiana. It was built in 1932, so it is 93 years old, older 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 9,942 vehicles a day, roughly 26% of them trucks, projected to reach 10,936 by 2041. The structure is 33 ft (10.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS0079
CrossesCooley Branch
Location1.9 MI East of LA 531
RouteU.S. Route 79
Coordinates32.63166, -93.24111
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable 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 loadH 15
Structure length33 ft (10.1 m)
Longest span6 ft (1.8 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,942 (2021)
Projected traffic10,936 by 2041
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 US0079 over Cooley Branch built?

It was built in 1932, making it 93 years old in 2025.

What condition is US0079 over Cooley 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 September 2024.

How much traffic does US0079 over Cooley Branch carry?

About 9,942 vehicles per day (2021 count), of which roughly 26% are trucks.

How long is US0079 over Cooley Branch?

The structure is 33 ft (10.1 m) long with a longest span of 6 ft (1.8 m) and a deck 40 ft wide.

Who owns US0079 over Cooley Branch?

It is owned by the State Highway Agency.