SR 170
SR 170 in 07-La-170-R20.10-La, Los Angeles County, California received a condition grade of B (74/100). Built in 1968, the bridge carries 156K vehicles daily on SR 170 over Arleta AVE & Sheldon ST.
SR 170 carries a B on the BridgeSafety Condition Score with 74/100. 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 1968 and is now 58 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. SR 170 carries an average daily traffic count of 156,000 vehicles, with 8 lane(s) crossing Arleta AVE & Sheldon ST. 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
SR 170 is a 58-year-old bridge located 07-La-170-R20.10-La in Los Angeles County, California. The bridge carries SR 170 over Arleta AVE & Sheldon ST with 8 traffic lanes, handling approximately 156K vehicles per day. Built in 1968 and reconstructed in 2014, the structure spans 146.9 meters.
The bridge received a Condition Grade of B (74/100) 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
SR 170 has a Condition Score of 74/100 (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.
SR 170 was built in 1968 and reconstructed in 2014, making it 58 years old. The average bridge age in the United States is 48 years.
SR 170 carries approximately 156K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 146.9 meters long and located on SR 170 in 07-La-170-R20.10-La, Los Angeles County, California.
No, SR 170 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
SR 170 is located 07-La-170-R20.10-La in Los Angeles County, California. The bridge carries SR 170 over Arleta AVE & Sheldon ST. Its coordinates are 34.226719, -118.410697. It is maintained by State Highway Agency.
SR 170 carries SR 170 over Arleta AVE & Sheldon ST. The bridge is 146.9 meters long and was built in 1968, with reconstruction in 2014.
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.