US Bridges

New Rafe Mayer RD over Drainage Bayou

Good

East Baton Rouge Parish, Louisiana · 0.5 MI W of LA.19 · Structure no. 611700000610368

Built
2017
8 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
737
2023 count
Owner
County
County Highway Agency

About this bridge

New Rafe Mayer RD over Drainage Bayou is a concrete slab carrying New Rafe Mayer RD over Drainage Bayou in East Baton Rouge Parish, Louisiana. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 737 vehicles a day, projected to reach 810 by 2043. The structure is 80 ft (24.4 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNew Rafe Mayer RD
CrossesDrainage Bayou
Location0.5 MI W of LA.19
RouteCounty Highway 0
CountyEast Baton Rouge Parish
StateLouisiana
Coordinates30.56729, -91.18038
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic737 (2023)
Projected traffic810 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was New Rafe Mayer RD over Drainage Bayou built?

It was built in 2017, making it 8 years old in 2025.

What condition is New Rafe Mayer RD over Drainage Bayou 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 June 2023.

How much traffic does New Rafe Mayer RD over Drainage Bayou carry?

About 737 vehicles per day (2023 count).

How long is New Rafe Mayer RD over Drainage Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns New Rafe Mayer RD over Drainage Bayou?

It is owned by the County Highway Agency.