STATE ROUTE 170
STATE ROUTE 170 in 07-La-170-R16.77-La, Los Angeles County, California received a condition grade of B (65/100). Built in 1966, the bridge carries 212K vehicles daily on STATE ROUTE 170 over Laurel Canyon BLVD.
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
STATE ROUTE 170 is a 60-year-old bridge located 07-La-170-R16.77-La in Los Angeles County, California. The bridge carries STATE ROUTE 170 over Laurel Canyon BLVD with 11 traffic lanes, handling approximately 212K vehicles per day. Built in 1966 and reconstructed in 2022, the structure spans 82.4 meters.
The bridge received a Condition Grade of B (65/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
STATE ROUTE 170 has a Condition Score of 65/100 (Grade B). Its deck is rated 5/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
STATE ROUTE 170 was built in 1966 and reconstructed in 2022, making it 60 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 170 carries approximately 212K vehicles per day (average daily traffic). The bridge has 11 traffic lanes. It is 82.4 meters long and located on STATE ROUTE 170 in 07-La-170-R16.77-La, Los Angeles County, California.
No, STATE ROUTE 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.
STATE ROUTE 170 is located 07-La-170-R16.77-La in Los Angeles County, California. The bridge carries STATE ROUTE 170 over Laurel Canyon BLVD. Its coordinates are 34.181336, -118.396233. It is maintained by State Highway Agency.
STATE ROUTE 170 carries STATE ROUTE 170 over Laurel Canyon BLVD. The bridge is 82.4 meters long and was built in 1966, with reconstruction in 2022.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.