US Bridges

Boggy Bayou RD over Boggy Bayou

Good

Concordia Parish, Louisiana · Logmi 1.3 E of LA129 · Structure no. 581531312914101

Built
1993
32 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
171 ft
9 main spans
Daily traffic
300
1983 count
Owner
County
County Highway Agency

About this bridge

Boggy Bayou RD over Boggy Bayou is a concrete slab carrying Boggy Bayou RD over Boggy Bayou in Concordia Parish, Louisiana. It was built in 1993, so it is 32 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, projected to reach 330 by 2003. The structure is 171 ft (52.1 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBoggy Bayou RD
CrossesBoggy Bayou
LocationLogmi 1.3 E of LA129
RouteCounty Highway 0
Coordinates31.52109, -91.68717
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (1983)
Projected traffic330 by 2003
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Boggy Bayou RD over Boggy Bayou built?

It was built in 1993, making it 32 years old in 2025.

What condition is Boggy Bayou RD over Boggy Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Boggy Bayou RD over Boggy Bayou carry?

About 300 vehicles per day (1983 count).

How long is Boggy Bayou RD over Boggy Bayou?

The structure is 171 ft (52.1 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Boggy Bayou RD over Boggy Bayou?

It is owned by the County Highway Agency.