US Bridges

LA3132 over US171 SPRR

Fair

Caddo Parish, Louisiana · 4.2 Mi. E. of LA 511 · Structure no. 040904270105141

Built
1979
46 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
672 ft
10 main spans
Daily traffic
53,886
2021 count
Owner
State
State Highway Agency

About this bridge

LA3132 over US171 SPRR is a prestressed concrete stringer/multi-beam or girder carrying LA3132 over US171 SPRR in Caddo Parish, Louisiana. It was built in 1979, so it is 46 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 6 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 53,886 vehicles a day, roughly 14% of them trucks, projected to reach 59,274 by 2041. The structure is 672 ft (204.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA3132
CrossesUS171 SPRR
Location4.2 Mi. E. of LA 511
RouteState Highway 3132
CountyCaddo Parish
StateLouisiana
Coordinates32.4159, -93.7903
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length672 ft (204.8 m)
Longest span82 ft (25 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,886 (2021)
Projected traffic59,274 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA3132 over US171 SPRR built?

It was built in 1979, making it 46 years old in 2025.

What condition is LA3132 over US171 SPRR 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 January 2025.

How much traffic does LA3132 over US171 SPRR carry?

About 53,886 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA3132 over US171 SPRR?

The structure is 672 ft (204.8 m) long with a longest span of 82 ft (25 m) and a deck 43 ft wide.

Who owns LA3132 over US171 SPRR?

It is owned by the State Highway Agency.