US Bridges

Holton-Harris RD over Vernon Lake

FairPosted for load

Vernon Parish, Louisiana · 1.89 M. S. of JCT LA 111 · Structure no. 085831133932091

Built
1965
60 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
59 ft
3 main spans
Daily traffic
180
1976 count
Owner
County
County Highway Agency

About this bridge

Holton-Harris RD over Vernon Lake is a concrete slab carrying Holton-Harris RD over Vernon Lake in Vernon Parish, Louisiana. It was built in 1965, so it is 60 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 180 vehicles a day, projected to reach 198 by 1996. The structure is 59 ft (18 m) long and 14 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesHolton-Harris RD
CrossesVernon Lake
Location1.89 M. S. of JCT LA 111
RouteCounty Highway 0
CountyVernon Parish
StateLouisiana
Coordinates31.22188, -93.3473
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (1976)
Projected traffic198 by 1996
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$223,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Holton-Harris RD over Vernon Lake built?

It was built in 1965, making it 60 years old in 2025.

What condition is Holton-Harris RD over Vernon Lake 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 2023.

How much traffic does Holton-Harris RD over Vernon Lake carry?

About 180 vehicles per day (1976 count).

How long is Holton-Harris RD over Vernon Lake?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 14 ft wide.

Who owns Holton-Harris RD over Vernon Lake?

It is owned by the County Highway Agency.