US Bridges

Off of 66 over Spangle Branch

FairPosted for load

West Feliciana Parish, Louisiana · 0.03 M SW LA 66&OLD LA 66 · Structure no. 616330505912401

Built
1959
66 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
97 ft
5 main spans
Daily traffic
2,889
2020 count
Owner
County
County Highway Agency

About this bridge

Off of 66 over Spangle Branch is a concrete slab carrying Off of 66 over Spangle Branch in West Feliciana Parish, Louisiana. It was built in 1959, so it is 66 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 2,889 vehicles a day, projected to reach 3,177 by 2040. The structure is 97 ft (29.6 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesOff of 66
CrossesSpangle Branch
Location0.03 M SW LA 66&OLD LA 66
RouteCounty Highway 0
CountyWest Feliciana Parish
StateLouisiana
Coordinates30.84353, -91.40192
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
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 inspectionJuly 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27 US tons
Inventory rating16 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadH 15
Structure length97 ft (29.6 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,889 (2020)
Projected traffic3,177 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$337,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Off of 66 over Spangle Branch built?

It was built in 1959, making it 66 years old in 2025.

What condition is Off of 66 over Spangle Branch 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 July 2024.

How much traffic does Off of 66 over Spangle Branch carry?

About 2,889 vehicles per day (2020 count).

How long is Off of 66 over Spangle Branch?

The structure is 97 ft (29.6 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns Off of 66 over Spangle Branch?

It is owned by the County Highway Agency.