US Bridges

Blanchard ST over Cadney Bayou Tributary

Good

Natchitoches Parish, Louisiana · 0.5 M. N. of LA 494 · Structure no. 083531458930361

Built
2000
25 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
392
2022 count
Owner
County
County Highway Agency

About this bridge

Blanchard ST over Cadney Bayou Tributary is a concrete slab carrying Blanchard ST over Cadney Bayou Tributary in Natchitoches Parish, Louisiana. It was built in 2000, so it is 25 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 392 vehicles a day, projected to reach 431 by 2042. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBlanchard ST
CrossesCadney Bayou Tributary
Location0.5 M. N. of LA 494
RouteCounty Highway 0
CountyNatchitoches Parish
StateLouisiana
Coordinates31.76368, -93.06
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic392 (2022)
Projected traffic431 by 2042
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Blanchard ST over Cadney Bayou Tributary built?

It was built in 2000, making it 25 years old in 2025.

What condition is Blanchard ST over Cadney Bayou Tributary 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 January 2023.

How much traffic does Blanchard ST over Cadney Bayou Tributary carry?

About 392 vehicles per day (2022 count).

How long is Blanchard ST over Cadney Bayou Tributary?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Blanchard ST over Cadney Bayou Tributary?

It is owned by the County Highway Agency.