US Bridges

Dummie Line RD over Shackleford Bayou

Poor

Morehouse Parish, Louisiana · 4.7 Mi. E. Int. 192 · Structure no. 053432555913511

Built
1960
65 years old, rebuilt 1980
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 ft
3 main spans
Daily traffic
60
1974 count
Owner
County
County Highway Agency

About this bridge

Dummie Line RD over Shackleford Bayou is a wood or timber stringer/multi-beam or girder carrying Dummie Line RD over Shackleford Bayou in Morehouse Parish, Louisiana. It was built in 1960 and reconstructed in 1980, 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 0 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: open, temporary structure in place while original is closed.

It carries about 60 vehicles a day, projected to reach 66 by 1994. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDummie Line RD
CrossesShackleford Bayou
Location4.7 Mi. E. Int. 192
RouteCounty Highway 0
Coordinates32.92597, -91.587
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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, temporary structure in place while original is closed
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 10
Structure length46 ft (14 m)
Longest span16 ft (4.9 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic60 (1974)
Projected traffic66 by 1994
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$184,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dummie Line RD over Shackleford Bayou built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1980.

What condition is Dummie Line RD over Shackleford 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 2024.

How much traffic does Dummie Line RD over Shackleford Bayou carry?

About 60 vehicles per day (1974 count).

How long is Dummie Line RD over Shackleford Bayou?

The structure is 46 ft (14 m) long with a longest span of 16 ft (4.9 m) and a deck 24 ft wide.

Who owns Dummie Line RD over Shackleford Bayou?

It is owned by the County Highway Agency.