US Bridges

US0061 over Grant Bayou

Good

West Feliciana Parish, Louisiana · 1.3 M W of LA 10 · Structure no. 616300000610269

Built
2011
14 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
176 ft
9 main spans
Daily traffic
10,202
2021 count
Owner
State
State Highway Agency

About this bridge

US0061 over Grant Bayou is a concrete slab carrying US0061 over Grant Bayou in West Feliciana Parish, Louisiana. It was built in 2011, so it is 14 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 10,202 vehicles a day, roughly 17% of them trucks, projected to reach 11,222 by 2041. The structure is 176 ft (53.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0061
CrossesGrant Bayou
Location1.3 M W of LA 10
RouteU.S. Route 61
CountyWest Feliciana Parish
StateLouisiana
Coordinates30.77211, -91.32601
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span20 ft (6.1 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,202 (2021)
Projected traffic11,222 by 2041
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US0061 over Grant Bayou built?

It was built in 2011, making it 14 years old in 2025.

What condition is US0061 over Grant 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 June 2023.

How much traffic does US0061 over Grant Bayou carry?

About 10,202 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is US0061 over Grant Bayou?

The structure is 176 ft (53.6 m) long with a longest span of 20 ft (6.1 m) and a deck 42 ft wide.

Who owns US0061 over Grant Bayou?

It is owned by the State Highway Agency.