US Bridges

Hood RD over Colyell Creek

FairPosted for load

Livingston Parish, Louisiana · 2.5MI Wsw of Int LA 42&63 · Structure no. 623230238904661

Built
2001
24 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
141 ft
8 main spans
Daily traffic
300
2022 count
Owner
County
County Highway Agency

About this bridge

Hood RD over Colyell Creek is a wood or timber stringer/multi-beam or girder carrying Hood RD over Colyell Creek in Livingston Parish, Louisiana. It was built in 2001, so it is 24 years old, younger 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 300 vehicles a day, projected to reach 330 by 2042. The structure is 141 ft (43 m) long and 20 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesHood RD
CrossesColyell Creek
Location2.5MI Wsw of Int LA 42&63
RouteCounty Highway 0
CountyLivingston Parish
StateLouisiana
Coordinates30.39841, -90.78051
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.4 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans8
Design loadH 15
Structure length141 ft (43 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic330 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$466,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hood RD over Colyell Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Hood RD over Colyell Creek 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 November 2024.

How much traffic does Hood RD over Colyell Creek carry?

About 300 vehicles per day (2022 count).

How long is Hood RD over Colyell Creek?

The structure is 141 ft (43 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns Hood RD over Colyell Creek?

It is owned by the County Highway Agency.