US Bridges

LA0040 over Savannah Branch

FairPosted for load

St. Tammany Parish, Louisiana · LA0040 · Structure no. 625202690700931

Built
1954
71 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
116 ft
6 main spans
Daily traffic
2,778
2021 count
Owner
State
State Highway Agency

About this bridge

LA0040 over Savannah Branch is a wood or timber stringer/multi-beam or girder carrying LA0040 over Savannah Branch in St. Tammany Parish, Louisiana. It was built in 1954, so it is 71 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,778 vehicles a day, roughly 12% of them trucks, projected to reach 3,055 by 2041. The structure is 116 ft (35.4 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesLA0040
CrossesSavannah Branch
LocationLA0040
RouteState Highway 40
CountySt. Tammany Parish
StateLouisiana
Coordinates30.61377, -90.2342
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating22 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans6
Design loadH 15
Structure length116 ft (35.4 m)
Longest span19 ft (5.8 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,778 (2021)
Projected traffic3,055 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$565,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0040 over Savannah Branch built?

It was built in 1954, making it 71 years old in 2025.

What condition is LA0040 over Savannah 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 October 2023.

How much traffic does LA0040 over Savannah Branch carry?

About 2,778 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0040 over Savannah Branch?

The structure is 116 ft (35.4 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns LA0040 over Savannah Branch?

It is owned by the State Highway Agency.