I 10 & Dirtroad
I 10 & Dirtroad in 8.2 MI West Of JCT I 17, Maricopa County, Arizona received a condition grade of F (0/100). Built in 1984, the bridge carries 233K vehicles daily on I 10 & Dirtroad over Rid Canal & DR. Channel. It is classified as structurally deficient.
I 10 & Dirtroad carries an F on the BridgeSafety Condition Score with 0/100 — the bottom tier of the FHWA NBI distribution. Component ratings flag the structure for near-term rehabilitation or replacement; the bridge may remain open to traffic but is on the priority list for action.
The bridge was built in 1984, making it 42 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. I 10 & Dirtroad carries an average daily traffic count of 232,893 vehicles, with 15 lane(s) crossing Rid Canal & DR. Channel. 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
I 10 & Dirtroad is a 42-year-old bridge located 8.2 MI West Of JCT I 17 in Maricopa County, Arizona. The bridge carries I 10 & Dirtroad over Rid Canal & DR. Channel with 15 traffic lanes, handling approximately 233K vehicles per day. Built in 1984, the structure spans 9.8 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below, this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 10 & Dirtroad has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
I 10 & Dirtroad was built in 1984, making it 42 years old. The average bridge age in the United States is 48 years.
I 10 & Dirtroad carries approximately 233K vehicles per day (average daily traffic). The bridge has 15 traffic lanes. It is 9.8 meters long and located on I 10 & Dirtroad in 8.2 MI West Of JCT I 17, Maricopa County, Arizona.
Yes, I 10 & Dirtroad is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
I 10 & Dirtroad is located 8.2 MI West Of JCT I 17 in Maricopa County, Arizona. The bridge carries I 10 & Dirtroad over Rid Canal & DR. Channel. Its coordinates are 33.462528, -112.250861. It is maintained by State Highway Agency.
I 10 & Dirtroad carries I 10 & Dirtroad over Rid Canal & DR. Channel. The bridge is 9.8 meters long and was built in 1984.
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.