US Bridges

I0049 over Buffalo Bayou

Fair

De Soto Parish, Louisiana · 1.63 MI N of US 84 Inter · Structure no. 041604550714772

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
340 ft
17 main spans
Daily traffic
28,142
2021 count
Owner
State
State Highway Agency

About this bridge

I0049 over Buffalo Bayou is a concrete slab carrying I0049 over Buffalo Bayou in De Soto Parish, Louisiana. It was built in 1985, so it is 40 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 28,142 vehicles a day, roughly 36% of them trucks, projected to reach 30,956 by 2041. The structure is 340 ft (103.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI0049
CrossesBuffalo Bayou
Location1.63 MI N of US 84 Inter
RouteInterstate 49
CountyDe Soto Parish
StateLouisiana
Coordinates32.08293, -93.5787
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 inspectionJune 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length340 ft (103.6 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,142 (2021)
Projected traffic30,956 by 2041
Trucks36%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I0049 over Buffalo Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is I0049 over Buffalo Bayou 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 June 2023.

How much traffic does I0049 over Buffalo Bayou carry?

About 28,142 vehicles per day (2021 count), of which roughly 36% are trucks.

How long is I0049 over Buffalo Bayou?

The structure is 340 ft (103.6 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns I0049 over Buffalo Bayou?

It is owned by the State Highway Agency.