US Bridges

LA1085 over Fox Branch

FairPosted for load

St. Tammany Parish, Louisiana · 1.6 Miles North of LA 22 · Structure no. 625208520201561

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
58 ft
3 main spans
Daily traffic
6,010
2021 count
Owner
County
County Highway Agency

About this bridge

LA1085 over Fox Branch is a wood or timber stringer/multi-beam or girder carrying LA1085 over Fox Branch in St. Tammany Parish, Louisiana. It was built in 1968, so it is 57 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. Its operating status is: posted for load restriction.

It carries about 6,010 vehicles a day, roughly 9% of them trucks, projected to reach 6,611 by 2041. The structure is 58 ft (17.7 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLA1085
CrossesFox Branch
Location1.6 Miles North of LA 22
RouteCounty Highway 1085
CountySt. Tammany Parish
StateLouisiana
Coordinates30.45765, -90.22711
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating22.5 US tons
Inventory rating15 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length58 ft (17.7 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,010 (2021)
Projected traffic6,611 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$315,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1085 over Fox Branch built?

It was built in 1968, making it 57 years old in 2025.

What condition is LA1085 over Fox 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 September 2023.

How much traffic does LA1085 over Fox Branch carry?

About 6,010 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA1085 over Fox Branch?

The structure is 58 ft (17.7 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA1085 over Fox Branch?

It is owned by the County Highway Agency.