US Bridges

LA0177 over Bayou Pierre

Fair

Red River Parish, Louisiana · .1 MI East of LA 510 · Structure no. 044101060300001

Built
1982
43 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
352 ft
6 main spans
Daily traffic
2,878
2021 count
Owner
State
State Highway Agency

About this bridge

LA0177 over Bayou Pierre is a steel stringer/multi-beam or girder carrying LA0177 over Bayou Pierre in Red River Parish, Louisiana. It was built in 1982, so it is 43 years old, younger 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 2,878 vehicles a day, roughly 19% of them trucks, projected to reach 3,165 by 2041. The structure is 352 ft (107.3 m) long and 37 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesLA0177
CrossesBayou Pierre
Location.1 MI East of LA 510
RouteState Highway 177
CountyRed River Parish
StateLouisiana
Coordinates31.98901, -93.44208
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating77.1 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length352 ft (107.3 m)
Longest span100 ft (30.5 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,878 (2021)
Projected traffic3,165 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 LA0177 over Bayou Pierre built?

It was built in 1982, making it 43 years old in 2025.

What condition is LA0177 over Bayou Pierre 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 June 2024.

How much traffic does LA0177 over Bayou Pierre carry?

About 2,878 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0177 over Bayou Pierre?

The structure is 352 ft (107.3 m) long with a longest span of 100 ft (30.5 m) and a deck 37 ft wide.

Who owns LA0177 over Bayou Pierre?

It is owned by the State Highway Agency.