US Bridges

Lamourie RD over Lamourie Bayou

Poor

Rapides Parish, Louisiana · 1.74 Miles East of US 71 · Structure no. 084031077922291

Built
1960
65 years old, rebuilt 2001
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
4 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

Lamourie RD over Lamourie Bayou is a wood or timber stringer/multi-beam or girder carrying Lamourie RD over Lamourie Bayou in Rapides Parish, Louisiana. It was built in 1960 and reconstructed in 2001, 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 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.

It carries about 120 vehicles a day, projected to reach 132 by 2042. The structure is 59 ft (18 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesLamourie RD
CrossesLamourie Bayou
Location1.74 Miles East of US 71
RouteCounty Highway 0
CountyRapides Parish
StateLouisiana
Coordinates31.12845, -92.3828
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 12 months
Operating statusOpen, no 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.1 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 20
Structure length59 ft (18 m)
Longest span15 ft (4.6 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic132 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Lamourie RD over Lamourie Bayou built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is Lamourie RD over Lamourie 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 October 2023.

How much traffic does Lamourie RD over Lamourie Bayou carry?

About 120 vehicles per day (2022 count).

How long is Lamourie RD over Lamourie Bayou?

The structure is 59 ft (18 m) long with a longest span of 15 ft (4.6 m) and a deck 20 ft wide.

Who owns Lamourie RD over Lamourie Bayou?

It is owned by the County Highway Agency.