US Bridges

US0090 over Bayou Osier

Poor

Calcasieu Parish, Louisiana · 0.9 MI W of I-210 · Structure no. 071000030501001

Built
1958
67 years old
Condition
Poor
inspected October 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
6,080
2021 count
Owner
State
State Highway Agency

About this bridge

US0090 over Bayou Osier is a concrete culvert carrying US0090 over Bayou Osier in Calcasieu Parish, Louisiana. It was built in 1958, so it is 67 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 6,080 vehicles a day, roughly 17% of them trucks, projected to reach 6,688 by 2041. The structure is 27 ft (8.2 m) long and 113 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS0090
CrossesBayou Osier
Location0.9 MI W of I-210
RouteU.S. Route 90
CountyCalcasieu Parish
StateLouisiana
Coordinates30.23492, -93.17709
Functional classUrban Other Principal Arterial

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
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width113 ft (34.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,080 (2021)
Projected traffic6,688 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$183,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090 over Bayou Osier built?

It was built in 1958, making it 67 years old in 2025.

What condition is US0090 over Bayou Osier 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 October 2024.

How much traffic does US0090 over Bayou Osier carry?

About 6,080 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is US0090 over Bayou Osier?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 113 ft wide.

Who owns US0090 over Bayou Osier?

It is owned by the State Highway Agency.