US Bridges

LA0479 over Ragan Creek Relief

Fair

Natchitoches Parish, Louisiana · 2.9 Mi. E of Int LA9 · Structure no. 083503580202901

Built
1985
40 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
719
2021 count
Owner
State
State Highway Agency

About this bridge

LA0479 over Ragan Creek Relief is a concrete slab carrying LA0479 over Ragan Creek Relief in Natchitoches Parish, Louisiana. It was built in 1985, so it is 40 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 719 vehicles a day, roughly 14% of them trucks, projected to reach 790 by 2041. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLA0479
CrossesRagan Creek Relief
Location2.9 Mi. E of Int LA9
RouteState Highway 479
CountyNatchitoches Parish
StateLouisiana
Coordinates32.04965, -92.9716
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic719 (2021)
Projected traffic790 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.7 mi (14 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 LA0479 over Ragan Creek Relief built?

It was built in 1985, making it 40 years old in 2025.

What condition is LA0479 over Ragan Creek 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 January 2024.

How much traffic does LA0479 over Ragan Creek Relief carry?

About 719 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0479 over Ragan Creek Relief?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0479 over Ragan Creek Relief?

It is owned by the State Highway Agency.