US Bridges

Leonard RD over Pierre Bayou

Fair

Caddo Parish, Louisiana · 0.8 MI SW of LA1 RT.#122 · Structure no. 040932224934051

Built
1983
42 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
5 main spans
Daily traffic
3,900
2019 count
Owner
County
County Highway Agency

About this bridge

Leonard RD over Pierre Bayou is a prestressed concrete stringer/multi-beam or girder carrying Leonard RD over Pierre Bayou in Caddo Parish, Louisiana. It was built in 1983, so it is 42 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 3,900 vehicles a day, projected to reach 4,290 by 2039. The structure is 251 ft (76.5 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLeonard RD
CrossesPierre Bayou
Location0.8 MI SW of LA1 RT.#122
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.37371, -93.67548
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length251 ft (76.5 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2019)
Projected traffic4,290 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Leonard RD over Pierre Bayou built?

It was built in 1983, making it 42 years old in 2025.

What condition is Leonard RD over Pierre Bayou 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 March 2023.

How much traffic does Leonard RD over Pierre Bayou carry?

About 3,900 vehicles per day (2019 count).

How long is Leonard RD over Pierre Bayou?

The structure is 251 ft (76.5 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns Leonard RD over Pierre Bayou?

It is owned by the County Highway Agency.