US Bridges

Port Hudson-Pride over Duff Bayou

PoorPosted for load

East Baton Rouge Parish, Louisiana · 6.2 Mi. E. of LA 67 · Structure no. 611730426910021

Built
1960
65 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
1,298
2019 count
Owner
County
County Highway Agency

About this bridge

Port Hudson-Pride over Duff Bayou is a wood or timber stringer/multi-beam or girder carrying Port Hudson-Pride over Duff Bayou in East Baton Rouge Parish, Louisiana. It was built in 1960, so it is 65 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,298 vehicles a day, projected to reach 1,427 by 2039. The structure is 39 ft (11.9 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPort Hudson-Pride
CrossesDuff Bayou
Location6.2 Mi. E. of LA 67
RouteCounty Highway 0
Coordinates30.71008, -90.99845
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length39 ft (11.9 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,298 (2019)
Projected traffic1,427 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-Pride over Duff Bayou built?

It was built in 1960, making it 65 years old in 2025.

What condition is Port Hudson-Pride over Duff Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Port Hudson-Pride over Duff Bayou carry?

About 1,298 vehicles per day (2019 count).

How long is Port Hudson-Pride over Duff Bayou?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Port Hudson-Pride over Duff Bayou?

It is owned by the County Highway Agency.