US Bridges

US0371 over Cooley Branch

Fair

Webster Parish, Louisiana · .5 MI South of I-20 · Structure no. 046000270312631

Built
1925
100 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
54 ft
6 main spans
Daily traffic
9,002
2021 count
Owner
State
State Highway Agency

About this bridge

US0371 over Cooley Branch is a concrete culvert carrying US0371 over Cooley Branch in Webster Parish, Louisiana. It was built in 1925, so it is 100 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 5 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 9,002 vehicles a day, roughly 10% of them trucks, projected to reach 9,902 by 2041. The structure is 54 ft (16.5 m) long and 51 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesUS0371
CrossesCooley Branch
Location.5 MI South of I-20
RouteU.S. Route 371
CountyWebster Parish
StateLouisiana
Coordinates32.58334, -93.2972
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadH 15
Structure length54 ft (16.5 m)
Longest span8 ft (2.4 m)
Deck width51 ft (15.4 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,002 (2021)
Projected traffic9,902 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 US0371 over Cooley Branch built?

It was built in 1925, making it 100 years old in 2025.

What condition is US0371 over Cooley Branch 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 September 2023.

How much traffic does US0371 over Cooley Branch carry?

About 9,002 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US0371 over Cooley Branch?

The structure is 54 ft (16.5 m) long with a longest span of 8 ft (2.4 m) and a deck 51 ft wide.

Who owns US0371 over Cooley Branch?

It is owned by the State Highway Agency.