US Bridges

Corin Pkwy. over Bayou

FairPosted for load

St. Tammany Parish, Louisiana · City of Mandeville · Structure no. 625230228900571

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
51 ft
3 main spans
Daily traffic
100
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Corin Pkwy. over Bayou is a concrete slab carrying Corin Pkwy. over Bayou in St. Tammany Parish, Louisiana. It was built in 1960, so it is 65 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 100 vehicles a day, projected to reach 110 by 2036. The structure is 51 ft (15.5 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCorin Pkwy.
CrossesBayou
LocationCity of Mandeville
RouteCounty Highway 0
CountySt. Tammany Parish
StateLouisiana
Coordinates30.37954, -90.08714
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 alignment7: Better than present minimum criteria
Operating rating13.2 US tons
Inventory rating10 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span17 ft (5.2 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2016)
Projected traffic110 by 2036
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$201,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Corin Pkwy. over Bayou built?

It was built in 1960, making it 65 years old in 2025.

What condition is Corin Pkwy. over Bayou 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 February 2023.

How much traffic does Corin Pkwy. over Bayou carry?

About 100 vehicles per day (2016 count).

How long is Corin Pkwy. over Bayou?

The structure is 51 ft (15.5 m) long with a longest span of 17 ft (5.2 m) and a deck 17 ft wide.

Who owns Corin Pkwy. over Bayou?

It is owned by the City or Municipal Highway Agency.