US Bridges

LA0146 over Castor Creek

FairPosted for load

Jackson Parish, Louisiana · 4.5 MI South of LA 145 · Structure no. 052500680206581

Built
1951
74 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
4 main spans
Daily traffic
882
2021 count
Owner
State
State Highway Agency

About this bridge

LA0146 over Castor Creek is a wood or timber stringer/multi-beam or girder carrying LA0146 over Castor Creek in Jackson Parish, Louisiana. It was built in 1951, so it is 74 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 882 vehicles a day, roughly 15% of them trucks, projected to reach 970 by 2041. The structure is 78 ft (23.8 m) long and 28 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesLA0146
CrossesCastor Creek
Location4.5 MI South of LA 145
RouteState Highway 146
CountyJackson Parish
StateLouisiana
Coordinates32.41615, -92.5667
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating12.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 15
Structure length78 ft (23.8 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic882 (2021)
Projected traffic970 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0146 over Castor Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is LA0146 over Castor Creek 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 LA0146 over Castor Creek carry?

About 882 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0146 over Castor Creek?

The structure is 78 ft (23.8 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns LA0146 over Castor Creek?

It is owned by the State Highway Agency.