US Bridges

Bostwick RD over Choctaw Bayou

Good

Caddo Parish, Louisiana · 0.7 MI West of LA 173 · Structure no. 040900000300226

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
180
2019 count
Owner
County
County Highway Agency

About this bridge

Bostwick RD over Choctaw Bayou is a concrete slab carrying Bostwick RD over Choctaw Bayou in Caddo Parish, Louisiana. It was built in 2013, so it is 12 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 180 vehicles a day, roughly 10% of them trucks, projected to reach 198 by 2039. The structure is 180 ft (54.9 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesBostwick RD
CrossesChoctaw Bayou
Location0.7 MI West of LA 173
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.55798, -93.87337
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2019)
Projected traffic198 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bostwick RD over Choctaw Bayou built?

It was built in 2013, making it 12 years old in 2025.

What condition is Bostwick RD over Choctaw 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 2023.

How much traffic does Bostwick RD over Choctaw Bayou carry?

About 180 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Bostwick RD over Choctaw Bayou?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Bostwick RD over Choctaw Bayou?

It is owned by the County Highway Agency.