US Bridges

US0011 over No&ne Railroad

PoorPosted for load

St. Tammany Parish, Louisiana · 1.05 MI S of I-12 EB · Structure no. 625200180400531

Built
1937
88 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
828 ft
8 main spans
Daily traffic
15,607
2021 count
Owner
State
State Highway Agency

About this bridge

US0011 over No&ne Railroad is a steel stringer/multi-beam or girder carrying US0011 over No&ne Railroad in St. Tammany Parish, Louisiana. It was built in 1937, so it is 88 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 15,607 vehicles a day, roughly 6% of them trucks, projected to reach 17,167 by 2041. The structure is 828 ft (252.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS0011
CrossesNo&ne Railroad
Location1.05 MI S of I-12 EB
RouteU.S. Route 11
CountySt. Tammany Parish
StateLouisiana
Coordinates30.29345, -89.7765
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8 (+14 approach)
Design loadH 15
Structure length828 ft (252.4 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,607 (2021)
Projected traffic17,167 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US0011 over No&ne Railroad built?

It was built in 1937, making it 88 years old in 2025.

What condition is US0011 over No&ne Railroad in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does US0011 over No&ne Railroad carry?

About 15,607 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US0011 over No&ne Railroad?

The structure is 828 ft (252.4 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns US0011 over No&ne Railroad?

It is owned by the State Highway Agency.