US Bridges

LA0019 over Slough

Good

East Baton Rouge Parish, Louisiana · 1.2 M S of LA 19&LA 64 · Structure no. 611702500107641

Built
1988
37 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
35 ft
4 main spans
Daily traffic
17,529
2021 count
Owner
State
State Highway Agency

About this bridge

LA0019 over Slough is a concrete culvert carrying LA0019 over Slough in East Baton Rouge Parish, Louisiana. It was built in 1988, so it is 37 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 17,529 vehicles a day, roughly 9% of them trucks, projected to reach 19,281 by 2041. The structure is 35 ft (10.7 m) long and 154 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0019
CrossesSlough
Location1.2 M S of LA 19&LA 64
RouteState Highway 19
Coordinates30.63213, -91.15943
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length35 ft (10.7 m)
Longest span8 ft (2.4 m)
Deck width154 ft (46.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,529 (2021)
Projected traffic19,281 by 2041
Trucks9%
Lanes on structure4
Traffic directionTwo-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 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 LA0019 over Slough built?

It was built in 1988, making it 37 years old in 2025.

What condition is LA0019 over Slough 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 February 2023.

How much traffic does LA0019 over Slough carry?

About 17,529 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0019 over Slough?

The structure is 35 ft (10.7 m) long with a longest span of 8 ft (2.4 m) and a deck 154 ft wide.

Who owns LA0019 over Slough?

It is owned by the State Highway Agency.