US Bridges

E. Achord RD over Drainage Bayou

PoorPosted for load

East Baton Rouge Parish, Louisiana · 4 Mi.Ne LA 42 I-10 I · Structure no. 611730234905421

Built
1970
55 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
1,732
2019 count
Owner
County
County Highway Agency

About this bridge

E. Achord RD over Drainage Bayou is a concrete slab carrying E. Achord RD over Drainage Bayou in East Baton Rouge 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 3 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 1,732 vehicles a day, projected to reach 1,905 by 2039. The structure is 57 ft (17.4 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE. Achord RD
CrossesDrainage Bayou
Location4 Mi.Ne LA 42 I-10 I
RouteCounty Highway 0
Coordinates30.38925, -90.98653
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.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,732 (2019)
Projected traffic1,905 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$217,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E. Achord RD over Drainage Bayou built?

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

What condition is E. Achord RD over Drainage 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 May 2024.

How much traffic does E. Achord RD over Drainage Bayou carry?

About 1,732 vehicles per day (2019 count).

How long is E. Achord RD over Drainage Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns E. Achord RD over Drainage Bayou?

It is owned by the County Highway Agency.