I0010
I0010 in 2.7 MI East Of I-310, Jefferson County, Louisiana received a condition grade of B (73/100). Built in 1967, the bridge carries 126K vehicles daily on I0010 over Duncan Canal.
I0010 carries a B on the BridgeSafety Condition Score with 73/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1967 and is now 59 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I0010 carries an average daily traffic count of 126,119 vehicles, with 3 lane(s) crossing Duncan Canal. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I0010 is a 59-year-old bridge located 2.7 MI East Of I-310 in Jefferson County, Louisiana. The bridge carries I0010 over Duncan Canal with 3 traffic lanes, handling approximately 126K vehicles per day. Built in 1967, the structure spans 68.6 meters.
The bridge received a Condition Grade of B (73/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I0010 has a Condition Score of 73/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I0010 was built in 1967, making it 59 years old. The average bridge age in the United States is 48 years.
I0010 carries approximately 126K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 68.6 meters long and located on I0010 in 2.7 MI East Of I-310, Jefferson County, Louisiana.
No, I0010 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I0010 is located 2.7 MI East Of I-310 in Jefferson County, Louisiana. The bridge carries I0010 over Duncan Canal. Its coordinates are 30.009150, -90.245400. It is maintained by State Highway Agency.
I0010 carries I0010 over Duncan Canal. The bridge is 68.6 meters long and was built in 1967.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.