US Bridges

K C RD over Bayou Narcisse

PoorPosted for load

Ascension Parish, Louisiana · 2.7 MI NE Dutchtown · Structure no. 610330160905681

Built
1970
55 years old
Condition
Poor
inspected February 2023
Type
Slab
Concrete
Length
40 ft
2 main spans
Daily traffic
250
2019 count
Owner
County
County Highway Agency

About this bridge

K C RD over Bayou Narcisse is a concrete slab carrying K C RD over Bayou Narcisse in Ascension Parish, Louisiana. It was built in 1970, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, projected to reach 275 by 2039. The structure is 40 ft (12.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesK C RD
CrossesBayou Narcisse
Location2.7 MI NE Dutchtown
RouteCounty Highway 0
CountyAscension Parish
StateLouisiana
Coordinates30.26631, -90.94654
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2019)
Projected traffic275 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

OwnerCounty Highway Agency
Maintained byCounty 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 K C RD over Bayou Narcisse built?

It was built in 1970, making it 55 years old in 2025.

What condition is K C RD over Bayou Narcisse 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 February 2023.

How much traffic does K C RD over Bayou Narcisse carry?

About 250 vehicles per day (2019 count).

How long is K C RD over Bayou Narcisse?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns K C RD over Bayou Narcisse?

It is owned by the County Highway Agency.