US Bridges

N. Cswy Blvd N.B. over Monroe Street Opass

Good

St. Tammany Parish, Louisiana · 0.30 MI N of Causeway Br. · Structure no. 625230222900561

Built
1993
32 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
1,957 ft
13 main spans
Daily traffic
1,600
1995 count
Owner
Toll Authority
Local Toll Authority

About this bridge

N. Cswy Blvd N.B. over Monroe Street Opass is a concrete continuous box beam or girders - multiple carrying N. Cswy Blvd N.B. over Monroe Street Opass in St. Tammany Parish, Louisiana. It was built in 1993, so it is 32 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,600 vehicles a day, projected to reach 1,760 by 2015. The structure is 1,957 ft (596.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN. Cswy Blvd N.B.
CrossesMonroe Street Opass
Location0.30 MI N of Causeway Br.
RouteCounty Highway 0
CountySt. Tammany Parish
StateLouisiana
Coordinates30.369, -90.09309
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating32.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans13 (+18 approach)
Design loadHS 20
Structure length1,957 ft (596.5 m)
Longest span140 ft (42.7 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic1,600 (1995)
Projected traffic1,760 by 2015
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N. Cswy Blvd N.B. over Monroe Street Opass built?

It was built in 1993, making it 32 years old in 2025.

What condition is N. Cswy Blvd N.B. over Monroe Street Opass in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does N. Cswy Blvd N.B. over Monroe Street Opass carry?

About 1,600 vehicles per day (1995 count).

How long is N. Cswy Blvd N.B. over Monroe Street Opass?

The structure is 1,957 ft (596.5 m) long with a longest span of 140 ft (42.7 m) and a deck 31 ft wide.

Who owns N. Cswy Blvd N.B. over Monroe Street Opass?

It is owned by the Local Toll Authority.