US Bridges

Par RD 4-100 over Palmers Branch

PoorPosted for load

East Feliciana Parish, Louisiana · 0.7 Mi. N Clint-Wilson RD · Structure no. 611930543910451

Built
1958
67 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
2 main spans
Daily traffic
362
2022 count
Owner
County
County Highway Agency

About this bridge

Par RD 4-100 over Palmers Branch is a wood or timber stringer/multi-beam or girder carrying Par RD 4-100 over Palmers Branch in East Feliciana Parish, Louisiana. It was built in 1958, so it is 67 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 362 vehicles a day, projected to reach 398 by 2042. The structure is 36 ft (11 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesPar RD 4-100
CrossesPalmers Branch
Location0.7 Mi. N Clint-Wilson RD
RouteCounty Highway 0
Coordinates30.90849, -91.07998
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.2 US tons
Inventory rating3.7 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 10
Structure length36 ft (11 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic362 (2022)
Projected traffic398 by 2042
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$154,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Par RD 4-100 over Palmers Branch built?

It was built in 1958, making it 67 years old in 2025.

What condition is Par RD 4-100 over Palmers Branch 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 June 2024.

How much traffic does Par RD 4-100 over Palmers Branch carry?

About 362 vehicles per day (2022 count).

How long is Par RD 4-100 over Palmers Branch?

The structure is 36 ft (11 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns Par RD 4-100 over Palmers Branch?

It is owned by the County Highway Agency.