US Bridges

Happywoods RD over I-12

Good

Tangipahoa Parish, Louisiana · 0.6 M W of I-55 · Structure no. 625304540303461

Built
1970
55 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
4 main spans
Daily traffic
6,680
2015 count
Owner
State
State Highway Agency

About this bridge

Happywoods RD over I-12 is a prestressed concrete stringer/multi-beam or girder carrying Happywoods RD over I-12 in Tangipahoa Parish, Louisiana. It was built in 1970, so it is 55 years old, older 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 6,680 vehicles a day, projected to reach 7,348 by 2035. The structure is 222 ft (67.7 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesHappywoods RD
CrossesI-12
Location0.6 M W of I-55
RouteCounty Highway 0
CountyTangipahoa Parish
StateLouisiana
Coordinates30.47878, -90.5007
Functional classUrban 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.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,680 (2015)
Projected traffic7,348 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$982,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Happywoods RD over I-12 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Happywoods RD over I-12 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 February 2023.

How much traffic does Happywoods RD over I-12 carry?

About 6,680 vehicles per day (2015 count).

How long is Happywoods RD over I-12?

The structure is 222 ft (67.7 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns Happywoods RD over I-12?

It is owned by the State Highway Agency.