US Bridges

N. Cswy Off Rmp SB over Monroe ST

Good

St. Tammany Parish, Louisiana · 0.4 MI N of Causeway Br. · Structure no. 625230222900568

Built
1993
32 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
388 ft
2 main spans
Daily traffic
500
2016 count
Owner
Toll Authority
Local Toll Authority

About this bridge

N. Cswy Off Rmp SB over Monroe ST is a concrete continuous box beam or girders - multiple carrying N. Cswy Off Rmp SB over Monroe ST 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 500 vehicles a day, projected to reach 550 by 2036. The structure is 388 ft (118.3 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN. Cswy Off Rmp SB
CrossesMonroe ST
Location0.4 MI N of Causeway Br.
RouteCounty Highway 0
CountySt. Tammany Parish
StateLouisiana
Coordinates30.37187, -90.09281
Functional classRural Local

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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+7 approach)
Design loadHS 20
Structure length388 ft (118.3 m)
Longest span136 ft (41.5 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2016)
Projected traffic550 by 2036
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemNo

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 Off Rmp SB over Monroe ST built?

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

What condition is N. Cswy Off Rmp SB over Monroe ST 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 Off Rmp SB over Monroe ST carry?

About 500 vehicles per day (2016 count).

How long is N. Cswy Off Rmp SB over Monroe ST?

The structure is 388 ft (118.3 m) long with a longest span of 136 ft (41.5 m) and a deck 23 ft wide.

Who owns N. Cswy Off Rmp SB over Monroe ST?

It is owned by the Local Toll Authority.