US Bridges

Babin RD over Bayou Narcisse

Good

Ascension Parish, Louisiana · 0.4 MI W of US 61 · Structure no. 610300000610318

Built
2020
5 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
61 ft
3 main spans
Daily traffic
2,640
2020 count
Owner
County
County Highway Agency

About this bridge

Babin RD over Bayou Narcisse is a concrete slab carrying Babin RD over Bayou Narcisse in Ascension Parish, Louisiana. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,640 vehicles a day, roughly 10% of them trucks, projected to reach 2,904 by 2040. The structure is 61 ft (18.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBabin RD
CrossesBayou Narcisse
Location0.4 MI W of US 61
RouteCounty Highway 0
Coordinates30.26219, -90.94
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length61 ft (18.6 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,640 (2020)
Projected traffic2,904 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Babin RD over Bayou Narcisse built?

It was built in 2020, making it 5 years old in 2025.

What condition is Babin RD over Bayou Narcisse 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 April 2023.

How much traffic does Babin RD over Bayou Narcisse carry?

About 2,640 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Babin RD over Bayou Narcisse?

The structure is 61 ft (18.6 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Babin RD over Bayou Narcisse?

It is owned by the County Highway Agency.