US Bridges

Port Hudson Cem RD over Cooper Bayou

Fair

East Baton Rouge Parish, Louisiana · 0.7 MI W of US 61 · Structure no. 611708173600651

Built
1968
57 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
252
2023 count
Owner
County
County Highway Agency

About this bridge

Port Hudson Cem RD over Cooper Bayou is a concrete slab carrying Port Hudson Cem RD over Cooper Bayou in East Baton Rouge Parish, Louisiana. It was built in 1968, so it is 57 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 252 vehicles a day, roughly 13% of them trucks, projected to reach 277 by 2043. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPort Hudson Cem RD
CrossesCooper Bayou
Location0.7 MI W of US 61
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.65453, -91.26285
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic252 (2023)
Projected traffic277 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Port Hudson Cem RD over Cooper Bayou built?

It was built in 1968, making it 57 years old in 2025.

What condition is Port Hudson Cem RD over Cooper 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 June 2023.

How much traffic does Port Hudson Cem RD over Cooper Bayou carry?

About 252 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Port Hudson Cem RD over Cooper Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns Port Hudson Cem RD over Cooper Bayou?

It is owned by the County Highway Agency.