US Bridges

Mayo RD over I-49 under Mayo Road

Fair

Caddo Parish, Louisiana · 1.5 M So of LA 526 Intr · Structure no. 040904550802581

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
291 ft
2 main spans
Daily traffic
4,200
2015 count
Owner
State
State Highway Agency

About this bridge

Mayo RD over I-49 under Mayo Road is a steel continuous girder and floorbeam system carrying Mayo RD over I-49 under Mayo Road in Caddo Parish, Louisiana. It was built in 1989, so it is 36 years old, younger 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 4,200 vehicles a day, projected to reach 4,620 by 2035. The structure is 291 ft (88.7 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMayo RD
CrossesI-49 under Mayo Road
Location1.5 M So of LA 526 Intr
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.37658, -93.7514
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length291 ft (88.7 m)
Longest span244 ft (74.4 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2015)
Projected traffic4,620 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mayo RD over I-49 under Mayo Road built?

It was built in 1989, making it 36 years old in 2025.

What condition is Mayo RD over I-49 under Mayo Road 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 2024.

How much traffic does Mayo RD over I-49 under Mayo Road carry?

About 4,200 vehicles per day (2015 count).

How long is Mayo RD over I-49 under Mayo Road?

The structure is 291 ft (88.7 m) long with a longest span of 244 ft (74.4 m) and a deck 47 ft wide.

Who owns Mayo RD over I-49 under Mayo Road?

It is owned by the State Highway Agency.