US Bridges

LA0604 over Creek

Poor

Tensas Parish, Louisiana · 5.66 MI North of LA 605 · Structure no. 585408541105661

Built
1962
63 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete
Length
182 ft
9 main spans
Daily traffic
1,151
2021 count
Owner
State
State Highway Agency

About this bridge

LA0604 over Creek is a concrete slab carrying LA0604 over Creek in Tensas Parish, Louisiana. It was built in 1962, so it is 63 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,151 vehicles a day, roughly 15% of them trucks, projected to reach 1,266 by 2041. The structure is 182 ft (55.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLA0604
CrossesCreek
Location5.66 MI North of LA 605
RouteState Highway 604
Coordinates32.00047, -91.1919
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,151 (2021)
Projected traffic1,266 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0604 over Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is LA0604 over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does LA0604 over Creek carry?

About 1,151 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0604 over Creek?

The structure is 182 ft (55.5 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns LA0604 over Creek?

It is owned by the State Highway Agency.