US Bridges

Keithvil-Sprrdg RD over Buchanan Bayou

Good

Caddo Parish, Louisiana · 3.44 MI E of LA 525 · Structure no. 040900000040000

Built
2019
6 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
140
2019 count
Owner
County
County Highway Agency

About this bridge

Keithvil-Sprrdg RD over Buchanan Bayou is a concrete slab carrying Keithvil-Sprrdg RD over Buchanan Bayou in Caddo Parish, Louisiana. It was built in 2019, so it is 6 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 140 vehicles a day, projected to reach 154 by 2039. The structure is 140 ft (42.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKeithvil-Sprrdg RD
CrossesBuchanan Bayou
Location3.44 MI E of LA 525
RouteCounty Highway 0
Coordinates32.33337, -93.84489
Functional classRural Major Collector

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 alignment6: Equal to present minimum criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans7
Design loadGreater than HL 93
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2019)
Projected traffic154 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Keithvil-Sprrdg RD over Buchanan Bayou built?

It was built in 2019, making it 6 years old in 2025.

What condition is Keithvil-Sprrdg RD over Buchanan 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 Keithvil-Sprrdg RD over Buchanan Bayou carry?

About 140 vehicles per day (2019 count).

How long is Keithvil-Sprrdg RD over Buchanan Bayou?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Keithvil-Sprrdg RD over Buchanan Bayou?

It is owned by the County Highway Agency.