US Bridges

LA0016 over Spring Branch

Fair

Tangipahoa Parish, Louisiana · LA0016 · Structure no. 625300470101011

Built
1962
63 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
380 ft
19 main spans
Daily traffic
12,718
2021 count
Owner
State
State Highway Agency

About this bridge

LA0016 over Spring Branch is a concrete slab carrying LA0016 over Spring Branch in Tangipahoa 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 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 12,718 vehicles a day, roughly 11% of them trucks, projected to reach 13,989 by 2041. The structure is 380 ft (115.8 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesLA0016
CrossesSpring Branch
LocationLA0016
RouteState Highway 16
CountyTangipahoa Parish
StateLouisiana
Coordinates30.7271, -90.4922
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating42 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans19
Design loadHS 20
Structure length380 ft (115.8 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,718 (2021)
Projected traffic13,989 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 LA0016 over Spring Branch built?

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

What condition is LA0016 over Spring 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 March 2023.

How much traffic does LA0016 over Spring Branch carry?

About 12,718 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0016 over Spring Branch?

The structure is 380 ft (115.8 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0016 over Spring Branch?

It is owned by the State Highway Agency.