US Bridges

LA0060 over Johnson Branch

Fair

Washington Parish, Louisiana · 1.0M East of JCT LA 16 · Structure no. 625902790401031

Built
1993
32 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
704
2021 count
Owner
State
State Highway Agency

About this bridge

LA0060 over Johnson Branch is a concrete culvert carrying LA0060 over Johnson Branch in Washington Parish, Louisiana. It was built in 1993, so it is 32 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 704 vehicles a day, roughly 12% of them trucks, projected to reach 774 by 2041. The structure is 34 ft (10.4 m) long and 51 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA0060
CrossesJohnson Branch
Location1.0M East of JCT LA 16
RouteState Highway 60
CountyWashington Parish
StateLouisiana
Coordinates30.72889, -90.0567
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width51 ft (15.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic704 (2021)
Projected traffic774 by 2041
Trucks12%
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 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 LA0060 over Johnson Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is LA0060 over Johnson Branch 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 July 2024.

How much traffic does LA0060 over Johnson Branch carry?

About 704 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0060 over Johnson Branch?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 51 ft wide.

Who owns LA0060 over Johnson Branch?

It is owned by the State Highway Agency.