US Bridges

Chickamaw RD over Bayou Lamourie

Good

Rapides Parish, Louisiana · 1.2 MI South of LA 470 · Structure no. 084000000600356

Built
2012
13 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
42 ft
3 main spans
Daily traffic
175
2022 count
Owner
County
County Highway Agency

About this bridge

Chickamaw RD over Bayou Lamourie is a steel culvert carrying Chickamaw RD over Bayou Lamourie in Rapides Parish, Louisiana. It was built in 2012, so it is 13 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, projected to reach 192 by 2042. The structure is 42 ft (12.8 m) long and 53 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesChickamaw RD
CrossesBayou Lamourie
Location1.2 MI South of LA 470
RouteCounty Highway 0
Coordinates31.13848, -92.4244
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width53 ft (16.3 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic192 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Chickamaw RD over Bayou Lamourie built?

It was built in 2012, making it 13 years old in 2025.

What condition is Chickamaw RD over Bayou Lamourie in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Chickamaw RD over Bayou Lamourie carry?

About 175 vehicles per day (2022 count).

How long is Chickamaw RD over Bayou Lamourie?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m) and a deck 53 ft wide.

Who owns Chickamaw RD over Bayou Lamourie?

It is owned by the County Highway Agency.