US Bridges

Flournoy Lucas RD over Boggy Bayou

Fair

Caddo Parish, Louisiana · 1.2 MI E INT.526 on Ph RD · Structure no. 040932254935291

Built
1981
44 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
475
2019 count
Owner
County
County Highway Agency

About this bridge

Flournoy Lucas RD over Boggy Bayou is a concrete slab carrying Flournoy Lucas RD over Boggy Bayou in Caddo Parish, Louisiana. It was built in 1981, so it is 44 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 475 vehicles a day, projected to reach 522 by 2039. The structure is 76 ft (23.2 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFlournoy Lucas RD
CrossesBoggy Bayou
Location1.2 MI E INT.526 on Ph RD
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.42313, -93.8845
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2019)
Projected traffic522 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Flournoy Lucas RD over Boggy Bayou built?

It was built in 1981, making it 44 years old in 2025.

What condition is Flournoy Lucas RD over Boggy 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 Flournoy Lucas RD over Boggy Bayou carry?

About 475 vehicles per day (2019 count).

How long is Flournoy Lucas RD over Boggy Bayou?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns Flournoy Lucas RD over Boggy Bayou?

It is owned by the County Highway Agency.