US Bridges

Kirkman Street over Contraband Bayou

Poor

Calcasieu Parish, Louisiana · 0.2 MI N of LA 3186 · Structure no. 071030108931261

Built
1964
61 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
6,090
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kirkman Street over Contraband Bayou is a concrete slab carrying Kirkman Street over Contraband Bayou in Calcasieu Parish, Louisiana. It was built in 1964, so it is 61 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 6,090 vehicles a day, projected to reach 6,699 by 2039. The structure is 95 ft (29 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKirkman Street
CrossesContraband Bayou
Location0.2 MI N of LA 3186
RouteCounty Highway 0
Coordinates30.17975, -93.20962
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width42 ft (12.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,090 (2019)
Projected traffic6,699 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$430,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Kirkman Street over Contraband Bayou built?

It was built in 1964, making it 61 years old in 2025.

What condition is Kirkman Street over Contraband Bayou 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 May 2024.

How much traffic does Kirkman Street over Contraband Bayou carry?

About 6,090 vehicles per day (2019 count).

How long is Kirkman Street over Contraband Bayou?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 42 ft wide.

Who owns Kirkman Street over Contraband Bayou?

It is owned by the City or Municipal Highway Agency.