US Bridges

Landfill Ln. over Simmons Bayou

Fair

St. Mary Parish, Louisiana · 0.1 MI W of Berwick Rd. S · Structure no. 035129407911461

Built
1977
48 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
450
2022 count
Owner
County
County Highway Agency

About this bridge

Landfill Ln. over Simmons Bayou is a concrete slab carrying Landfill Ln. over Simmons Bayou in St. Mary Parish, Louisiana. It was built in 1977, so it is 48 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 450 vehicles a day, projected to reach 495 by 2042. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesLandfill Ln.
CrossesSimmons Bayou
Location0.1 MI W of Berwick Rd. S
RouteCounty Highway 0
CountySt. Mary Parish
StateLouisiana
Coordinates29.68096, -91.23452
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating41.4 US tons
Inventory rating32.2 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 width31 ft (9.6 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2022)
Projected traffic495 by 2042
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

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 Landfill Ln. over Simmons Bayou built?

It was built in 1977, making it 48 years old in 2025.

What condition is Landfill Ln. over Simmons 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 April 2023.

How much traffic does Landfill Ln. over Simmons Bayou carry?

About 450 vehicles per day (2022 count).

How long is Landfill Ln. over Simmons Bayou?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Landfill Ln. over Simmons Bayou?

It is owned by the County Highway Agency.