US Bridges

US0084 over Castor Creek

Poor

La Salle Parish, Louisiana · 2.3 MI West of US 165 · Structure no. 583000220400001

Built
1962
63 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
523 ft
8 main spans
Daily traffic
1,473
2021 count
Owner
State
State Highway Agency

About this bridge

US0084 over Castor Creek is a steel stringer/multi-beam or girder carrying US0084 over Castor Creek in La Salle Parish, Louisiana. It was built in 1962, so it is 63 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 4 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.

It carries about 1,473 vehicles a day, roughly 20% of them trucks, projected to reach 1,620 by 2041. The structure is 523 ft (159.4 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesUS0084
CrossesCastor Creek
Location2.3 MI West of US 165
RouteU.S. Route 84
Coordinates31.83045, -92.3418
Functional classRural Principal Arterial - Other

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating32.5 US tons
Inventory rating25 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length523 ft (159.4 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,473 (2021)
Projected traffic1,620 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US0084 over Castor Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is US0084 over Castor Creek 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 2023.

How much traffic does US0084 over Castor Creek carry?

About 1,473 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is US0084 over Castor Creek?

The structure is 523 ft (159.4 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns US0084 over Castor Creek?

It is owned by the State Highway Agency.