US Bridges

Auto Plex DR over Claycut Bayou

PoorPosted for load

East Baton Rouge Parish, Louisiana · .01 MI South of Airline · Structure no. 611730241910331

Built
1978
47 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
96 ft
5 main spans
Daily traffic
389
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Auto Plex DR over Claycut Bayou is a wood or timber stringer/multi-beam or girder carrying Auto Plex DR over Claycut Bayou in East Baton Rouge Parish, Louisiana. It was built in 1978, so it is 47 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 389 vehicles a day, projected to reach 427 by 2039. The structure is 96 ft (29.3 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesAuto Plex DR
CrossesClaycut Bayou
Location.01 MI South of Airline
RouteCounty Highway 0
Coordinates30.40351, -91.06047
Functional classRural Minor Arterial

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating16.1 US tons
Inventory rating12.1 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length96 ft (29.3 m)
Longest span19 ft (5.8 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic389 (2019)
Projected traffic427 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Auto Plex DR over Claycut Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is Auto Plex DR over Claycut 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 January 2024.

How much traffic does Auto Plex DR over Claycut Bayou carry?

About 389 vehicles per day (2019 count).

How long is Auto Plex DR over Claycut Bayou?

The structure is 96 ft (29.3 m) long with a longest span of 19 ft (5.8 m) and a deck 30 ft wide.

Who owns Auto Plex DR over Claycut Bayou?

It is owned by the City or Municipal Highway Agency.