US Bridges

Red Oak Road (loc) over I-12

Good

Livingston Parish, Louisiana · 1.2 M E of LA 63 · Structure no. 623204540215941

Built
1969
56 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
343 ft
4 main spans
Daily traffic
4,360
2015 count
Owner
State
State Highway Agency

About this bridge

Red Oak Road (loc) over I-12 is a steel continuous stringer/multi-beam or girder carrying Red Oak Road (loc) over I-12 in Livingston Parish, Louisiana. It was built in 1969, so it is 56 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 4,360 vehicles a day, projected to reach 4,796 by 2035. The structure is 343 ft (104.5 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRed Oak Road (loc)
CrossesI-12
Location1.2 M E of LA 63
RouteCounty Highway 0
CountyLivingston Parish
StateLouisiana
Coordinates30.47458, -90.7233
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.
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length343 ft (104.5 m)
Longest span100 ft (30.5 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,360 (2015)
Projected traffic4,796 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Red Oak Road (loc) over I-12 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Red Oak Road (loc) 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 2024.

How much traffic does Red Oak Road (loc) over I-12 carry?

About 4,360 vehicles per day (2015 count).

How long is Red Oak Road (loc) over I-12?

The structure is 343 ft (104.5 m) long with a longest span of 100 ft (30.5 m) and a deck 30 ft wide.

Who owns Red Oak Road (loc) over I-12?

It is owned by the State Highway Agency.