US Bridges

Istre RD over Lazy Point Canal

PoorPosted for load

Acadia Parish, Louisiana · 1.1 Mi. W. of LA 92 · Structure no. 030130075923171

Built
1965
60 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
152 ft
10 main spans
Daily traffic
96
2020 count
Owner
County
County Highway Agency

About this bridge

Istre RD over Lazy Point Canal is a wood or timber stringer/multi-beam or girder carrying Istre RD over Lazy Point Canal in Acadia Parish, Louisiana. It was built in 1965, so it is 60 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 96 vehicles a day, projected to reach 105 by 2040. The structure is 152 ft (46.3 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesIstre RD
CrossesLazy Point Canal
Location1.1 Mi. W. of LA 92
RouteCounty Highway 0
CountyAcadia Parish
StateLouisiana
Coordinates30.12713, -92.5308
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.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating21.1 US tons
Inventory rating13 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans10
Design loadH 10
Structure length152 ft (46.3 m)
Longest span17 ft (5.2 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2020)
Projected traffic105 by 2040
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$496,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Istre RD over Lazy Point Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is Istre RD over Lazy Point Canal 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 July 2024.

How much traffic does Istre RD over Lazy Point Canal carry?

About 96 vehicles per day (2020 count).

How long is Istre RD over Lazy Point Canal?

The structure is 152 ft (46.3 m) long with a longest span of 17 ft (5.2 m) and a deck 18 ft wide.

Who owns Istre RD over Lazy Point Canal?

It is owned by the County Highway Agency.