US Bridges

I0049 over Copenhagen Slough

Fair

Rapides Parish, Louisiana · 5.33 Mi. North of LA 3265 · Structure no. 084004550523852

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
11,969
2021 count
Owner
State
State Highway Agency

About this bridge

I0049 over Copenhagen Slough is a concrete slab carrying I0049 over Copenhagen Slough in Rapides Parish, Louisiana. It was built in 1990, so it is 35 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 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 11,969 vehicles a day, roughly 30% of them trucks, projected to reach 13,165 by 2041. The structure is 100 ft (30.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0049
CrossesCopenhagen Slough
Location5.33 Mi. North of LA 3265
RouteInterstate 49
CountyRapides Parish
StateLouisiana
Coordinates31.23496, -92.4583
Functional classRural Principal Arterial - Interstate

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,969 (2021)
Projected traffic13,165 by 2041
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I0049 over Copenhagen Slough built?

It was built in 1990, making it 35 years old in 2025.

What condition is I0049 over Copenhagen Slough 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 October 2024.

How much traffic does I0049 over Copenhagen Slough carry?

About 11,969 vehicles per day (2021 count), of which roughly 30% are trucks.

How long is I0049 over Copenhagen Slough?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns I0049 over Copenhagen Slough?

It is owned by the State Highway Agency.