US Bridges

3 Knotch Rd. over Bluff Creek

Good

East Feliciana Parish, Louisiana · 2.7 M NW of LA 63&LA 37 · Structure no. 611930459905251

Built
1984
41 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
12
2020 count
Owner
County
County Highway Agency

About this bridge

3 Knotch Rd. over Bluff Creek is a concrete slab carrying 3 Knotch Rd. over Bluff Creek in East Feliciana Parish, Louisiana. It was built in 1984, so it is 41 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 12 vehicles a day, projected to reach 13 by 2040. The structure is 95 ft (29 m) long and 26 ft wide.

Carries3 Knotch Rd.
CrossesBluff Creek
Location2.7 M NW of LA 63&LA 37
RouteCounty Highway 0
Coordinates30.7637, -90.87769
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating29.7 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 width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12 (2020)
Projected traffic13 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 3 Knotch Rd. over Bluff Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is 3 Knotch Rd. over Bluff Creek 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 May 2024.

How much traffic does 3 Knotch Rd. over Bluff Creek carry?

About 12 vehicles per day (2020 count).

How long is 3 Knotch Rd. over Bluff Creek?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns 3 Knotch Rd. over Bluff Creek?

It is owned by the County Highway Agency.