US Bridges

Portage Levee Rd. over West Levee Borrow Pit

PoorPosted for load

St. Landry Parish, Louisiana · 1.37 MI NE of LA 737 · Structure no. 034930253915091

Built
1970
55 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
248 ft
13 main spans
Daily traffic
310
2020 count
Owner
County
County Highway Agency

About this bridge

Portage Levee Rd. over West Levee Borrow Pit is a wood or timber stringer/multi-beam or girder carrying Portage Levee Rd. over West Levee Borrow Pit in St. Landry Parish, Louisiana. It was built in 1970, so it is 55 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 4 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 310 vehicles a day, projected to reach 341 by 2040. The structure is 248 ft (75.6 m) long and 20 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesPortage Levee Rd.
CrossesWest Levee Borrow Pit
Location1.37 MI NE of LA 737
RouteCounty Highway 0
CountySt. Landry Parish
StateLouisiana
Coordinates30.42211, -91.8478
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating25 US tons
Inventory rating17.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans13
Design loadH 10
Structure length248 ft (75.6 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2020)
Projected traffic341 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$760,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Portage Levee Rd. over West Levee Borrow Pit built?

It was built in 1970, making it 55 years old in 2025.

What condition is Portage Levee Rd. over West Levee Borrow Pit 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 April 2023.

How much traffic does Portage Levee Rd. over West Levee Borrow Pit carry?

About 310 vehicles per day (2020 count).

How long is Portage Levee Rd. over West Levee Borrow Pit?

The structure is 248 ft (75.6 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns Portage Levee Rd. over West Levee Borrow Pit?

It is owned by the County Highway Agency.