US Bridges

LA0019 over Copper Mill Bayou

FairPosted for load

East Baton Rouge Parish, Louisiana · 1.8 M N of LA 64 · Structure no. 611702500110621

Built
1951
74 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
122 ft
5 main spans
Daily traffic
11,198
2021 count
Owner
State
State Highway Agency

About this bridge

LA0019 over Copper Mill Bayou is a concrete tee beam carrying LA0019 over Copper Mill Bayou in East Baton Rouge Parish, Louisiana. It was built in 1951, so it is 74 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 11,198 vehicles a day, roughly 7% of them trucks, projected to reach 12,317 by 2041. The structure is 122 ft (37.2 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLA0019
CrossesCopper Mill Bayou
Location1.8 M N of LA 64
RouteState Highway 19
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.673, -91.15158
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length122 ft (37.2 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,198 (2021)
Projected traffic12,317 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$592,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0019 over Copper Mill Bayou built?

It was built in 1951, making it 74 years old in 2025.

What condition is LA0019 over Copper Mill Bayou in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does LA0019 over Copper Mill Bayou carry?

About 11,198 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is LA0019 over Copper Mill Bayou?

The structure is 122 ft (37.2 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns LA0019 over Copper Mill Bayou?

It is owned by the State Highway Agency.