US Bridges

Lady of Lake RD over Cypress Island Coulee

Good

St. Martin Parish, Louisiana · 1.6 Mi. W of LA 31 · Structure no. 035030050915211

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
1,029
2021 count
Owner
County
County Highway Agency

About this bridge

Lady of Lake RD over Cypress Island Coulee is a concrete slab carrying Lady of Lake RD over Cypress Island Coulee in St. Martin Parish, Louisiana. It was built in 1985, so it is 40 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 1,029 vehicles a day, projected to reach 1,131 by 2041. The structure is 95 ft (29 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLady of Lake RD
CrossesCypress Island Coulee
Location1.6 Mi. W of LA 31
RouteCounty Highway 0
Coordinates30.08302, -91.86986
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,029 (2021)
Projected traffic1,131 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lady of Lake RD over Cypress Island Coulee built?

It was built in 1985, making it 40 years old in 2025.

What condition is Lady of Lake RD over Cypress Island Coulee 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 Lady of Lake RD over Cypress Island Coulee carry?

About 1,029 vehicles per day (2021 count).

How long is Lady of Lake RD over Cypress Island Coulee?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Lady of Lake RD over Cypress Island Coulee?

It is owned by the County Highway Agency.