US Bridges

Ochsner Boulevard over Timber Branch

Fair

St. Tammany Parish, Louisiana · 1.5 Mi.Northwest of LA.21 · Structure no. 625200000620323

Built
2010
15 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
33 ft
4 main spans
Daily traffic
6,295
2017 count
Owner
County
County Highway Agency

About this bridge

Ochsner Boulevard over Timber Branch is a concrete culvert carrying Ochsner Boulevard over Timber Branch in St. Tammany Parish, Louisiana. It was built in 2010, so it is 15 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 6,295 vehicles a day, projected to reach 6,924 by 2037. The structure is 33 ft (10.1 m) long and 74 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesOchsner Boulevard
CrossesTimber Branch
Location1.5 Mi.Northwest of LA.21
RouteCounty Highway 0
CountySt. Tammany Parish
StateLouisiana
Coordinates30.46347, -90.15036
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span8 ft (2.4 m)
Deck width74 ft (22.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,295 (2017)
Projected traffic6,924 by 2037
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Ochsner Boulevard over Timber Branch built?

It was built in 2010, making it 15 years old in 2025.

What condition is Ochsner Boulevard over Timber 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 January 2025.

How much traffic does Ochsner Boulevard over Timber Branch carry?

About 6,295 vehicles per day (2017 count).

How long is Ochsner Boulevard over Timber Branch?

The structure is 33 ft (10.1 m) long with a longest span of 8 ft (2.4 m) and a deck 74 ft wide.

Who owns Ochsner Boulevard over Timber Branch?

It is owned by the County Highway Agency.