US Bridges

LA0147 over Dudgemona Relief

Fair

Jackson Parish, Louisiana · 1.43 MI West of US 167 · Structure no. 052500430101431

Built
2003
22 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
453 ft
12 main spans
Daily traffic
3,480
2021 count
Owner
State
State Highway Agency

About this bridge

LA0147 over Dudgemona Relief is a concrete slab carrying LA0147 over Dudgemona Relief in Jackson Parish, Louisiana. It was built in 2003, so it is 22 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,480 vehicles a day, roughly 15% of them trucks, projected to reach 3,828 by 2041. The structure is 453 ft (138.1 m) long and 46 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0147
CrossesDudgemona Relief
Location1.43 MI West of US 167
RouteState Highway 147
CountyJackson Parish
StateLouisiana
Coordinates32.28476, -92.7454
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length453 ft (138.1 m)
Longest span38 ft (11.6 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,480 (2021)
Projected traffic3,828 by 2041
Trucks15%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0147 over Dudgemona Relief built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA0147 over Dudgemona Relief in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does LA0147 over Dudgemona Relief carry?

About 3,480 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0147 over Dudgemona Relief?

The structure is 453 ft (138.1 m) long with a longest span of 38 ft (11.6 m) and a deck 46 ft wide.

Who owns LA0147 over Dudgemona Relief?

It is owned by the State Highway Agency.