US Bridges

LA0010 over Natalbany Creek

Fair

St. Helena Parish, Louisiana · 5.95 Mi. East of LA 37 · Structure no. 624600610805951

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
1,514
2021 count
Owner
State
State Highway Agency

About this bridge

LA0010 over Natalbany Creek is a prestressed concrete stringer/multi-beam or girder carrying LA0010 over Natalbany Creek in St. Helena Parish, Louisiana. It was built in 1975, so it is 50 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 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 1,514 vehicles a day, roughly 11% of them trucks, projected to reach 1,665 by 2041. The structure is 90 ft (27.4 m) long and 44 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesLA0010
CrossesNatalbany Creek
Location5.95 Mi. East of LA 37
RouteState Highway 10
CountySt. Helena Parish
StateLouisiana
Coordinates30.82481, -90.56691
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 rating83 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.3 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,514 (2021)
Projected traffic1,665 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 LA0010 over Natalbany Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is LA0010 over Natalbany 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 September 2024.

How much traffic does LA0010 over Natalbany Creek carry?

About 1,514 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0010 over Natalbany Creek?

The structure is 90 ft (27.4 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns LA0010 over Natalbany Creek?

It is owned by the State Highway Agency.