US Bridges

Highland ST over LA 1 S.Bound

Fair

Caddo Parish, Louisiana · 2.3 MI North of LA 3032 · Structure no. 040900530908035

Built
1954
71 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
120 ft
3 main spans
Daily traffic
2,570
2016 count
Owner
State
State Highway Agency

About this bridge

Highland ST over LA 1 S.Bound is a steel stringer/multi-beam or girder carrying Highland ST over LA 1 S.Bound in Caddo Parish, Louisiana. It was built in 1954, so it is 71 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 5 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 2,570 vehicles a day, roughly 8% of them trucks, projected to reach 2,827 by 2036. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHighland ST
CrossesLA 1 S.Bound
Location2.3 MI North of LA 3032
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.50429, -93.7367
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span75 ft (22.9 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,570 (2016)
Projected traffic2,827 by 2036
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$585,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Highland ST over LA 1 S.Bound built?

It was built in 1954, making it 71 years old in 2025.

What condition is Highland ST over LA 1 S.Bound 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 Highland ST over LA 1 S.Bound carry?

About 2,570 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is Highland ST over LA 1 S.Bound?

The structure is 120 ft (36.6 m) long with a longest span of 75 ft (22.9 m) and a deck 30 ft wide.

Who owns Highland ST over LA 1 S.Bound?

It is owned by the State Highway Agency.