US Bridges

Tarbutton Road over 1-20

Good

Lincoln Parish, Louisiana · 0.04 Mi. N. of LA 150 · Structure no. 053100000050211

Built
2019
6 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
275 ft
2 main spans
Daily traffic
4,475
2015 count
Owner
State
State Highway Agency

About this bridge

Tarbutton Road over 1-20 is a steel stringer/multi-beam or girder carrying Tarbutton Road over 1-20 in Lincoln Parish, Louisiana. It was built in 2019, so it is 6 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 4,475 vehicles a day, roughly 2% of them trucks, projected to reach 4,922 by 2035. The structure is 275 ft (83.8 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTarbutton Road
Crosses1-20
Location0.04 Mi. N. of LA 150
RouteCounty Highway 0
Coordinates32.54023, -92.67795
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length275 ft (83.8 m)
Longest span138 ft (42.1 m)
Deck width76 ft (23.3 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,475 (2015)
Projected traffic4,922 by 2035
Trucks2%
Lanes on structure4
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tarbutton Road over 1-20 built?

It was built in 2019, making it 6 years old in 2025.

What condition is Tarbutton Road over 1-20 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 December 2023.

How much traffic does Tarbutton Road over 1-20 carry?

About 4,475 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Tarbutton Road over 1-20?

The structure is 275 ft (83.8 m) long with a longest span of 138 ft (42.1 m) and a deck 76 ft wide.

Who owns Tarbutton Road over 1-20?

It is owned by the State Highway Agency.