US Bridges

Summer RD over Bayou Mallet

Good

St. Landry Parish, Louisiana · 0.3 MI West of Falcon RD · Structure no. 034900000800237

Built
2011
14 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Summer RD over Bayou Mallet is a concrete slab carrying Summer RD over Bayou Mallet in St. Landry Parish, Louisiana. It was built in 2011, so it is 14 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 80 vehicles a day, projected to reach 88 by 2040. The structure is 100 ft (30.5 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSummer RD
CrossesBayou Mallet
Location0.3 MI West of Falcon RD
RouteCounty Highway 0
Coordinates30.52487, -92.18795
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic88 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Summer RD over Bayou Mallet built?

It was built in 2011, making it 14 years old in 2025.

What condition is Summer RD over Bayou Mallet 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 January 2023.

How much traffic does Summer RD over Bayou Mallet carry?

About 80 vehicles per day (2020 count).

How long is Summer RD over Bayou Mallet?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Summer RD over Bayou Mallet?

It is owned by the County Highway Agency.