US Bridges

LA1027 over West Colyell CR

FairPosted for load

Livingston Parish, Louisiana · 0.2 M E of LA 1026 · Structure no. 623202730306021

Built
1952
73 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
4 main spans
Daily traffic
6,554
2021 count
Owner
State
State Highway Agency

About this bridge

LA1027 over West Colyell CR is a wood or timber stringer/multi-beam or girder carrying LA1027 over West Colyell CR in Livingston Parish, Louisiana. It was built in 1952, so it is 73 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. Its operating status is: posted for load restriction.

It carries about 6,554 vehicles a day, roughly 8% of them trucks, projected to reach 7,209 by 2041. The structure is 78 ft (23.8 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesLA1027
CrossesWest Colyell CR
Location0.2 M E of LA 1026
RouteState Highway 1027
CountyLivingston Parish
StateLouisiana
Coordinates30.48987, -90.8963
Functional classUrban Minor 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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating12 US tons
Inventory rating5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 10
Structure length78 ft (23.8 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,554 (2021)
Projected traffic7,209 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1027 over West Colyell CR built?

It was built in 1952, making it 73 years old in 2025.

What condition is LA1027 over West Colyell CR 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 March 2024.

How much traffic does LA1027 over West Colyell CR carry?

About 6,554 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA1027 over West Colyell CR?

The structure is 78 ft (23.8 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns LA1027 over West Colyell CR?

It is owned by the State Highway Agency.