US Bridges

LA0191 over Cow Bayou Relief

Fair

De Soto Parish, Louisiana · 1.92 MI North of LA 481 · Structure no. 041604320201921

Built
1960
65 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
160 ft
8 main spans
Daily traffic
769
2021 count
Owner
State
State Highway Agency

About this bridge

LA0191 over Cow Bayou Relief is a concrete slab carrying LA0191 over Cow Bayou Relief in De Soto Parish, Louisiana. It was built in 1960, so it is 65 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 769 vehicles a day, roughly 19% of them trucks, projected to reach 845 by 2041. The structure is 160 ft (48.8 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLA0191
CrossesCow Bayou Relief
Location1.92 MI North of LA 481
RouteState Highway 191
CountyDe Soto Parish
StateLouisiana
Coordinates31.86628, -93.8185
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic769 (2021)
Projected traffic845 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.1 mi (13 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 LA0191 over Cow Bayou Relief built?

It was built in 1960, making it 65 years old in 2025.

What condition is LA0191 over Cow Bayou Relief 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 May 2023.

How much traffic does LA0191 over Cow Bayou Relief carry?

About 769 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0191 over Cow Bayou Relief?

The structure is 160 ft (48.8 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0191 over Cow Bayou Relief?

It is owned by the State Highway Agency.