US Bridges

Norris RD over I 20

Fair

Lincoln Parish, Louisiana · 3.5 MI East of LA 145M · Structure no. 053104510525101

Built
1960
65 years old, rebuilt 1993
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
402 ft
8 main spans
Daily traffic
3,620
2015 count
Owner
State
State Highway Agency

About this bridge

Norris RD over I 20 is a steel stringer/multi-beam or girder carrying Norris RD over I 20 in Lincoln Parish, Louisiana. It was built in 1960 and reconstructed in 1993, so it is 65 years old, older 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 3,620 vehicles a day, projected to reach 3,982 by 2035. The structure is 402 ft (122.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorris RD
CrossesI 20
Location3.5 MI East of LA 145M
RouteCounty Highway 0
CountyLincoln Parish
StateLouisiana
Coordinates32.52997, -92.4541
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
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 rating35.1 US tons
Inventory rating26.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length402 ft (122.5 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 traffic3,620 (2015)
Projected traffic3,982 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Norris RD over I 20 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1993.

What condition is Norris RD over I 20 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 December 2023.

How much traffic does Norris RD over I 20 carry?

About 3,620 vehicles per day (2015 count).

How long is Norris RD over I 20?

The structure is 402 ft (122.5 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns Norris RD over I 20?

It is owned by the State Highway Agency.