INTERSTATE 605
INTERSTATE 605 in 07-La-605-R19.85-Bwp, Los Angeles County, California received a condition grade of B (68/100). Built in 1957, the bridge carries 220K vehicles daily on INTERSTATE 605 over Walnut Creek.
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
INTERSTATE 605 is a 69-year-old bridge located 07-La-605-R19.85-Bwp in Los Angeles County, California. The bridge carries INTERSTATE 605 over Walnut Creek with 12 traffic lanes, handling approximately 220K vehicles per day. Built in 1957 and reconstructed in 1995, the structure spans 142.2 meters.
The bridge received a Condition Grade of B (68/100) 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
INTERSTATE 605 has a Condition Score of 68/100 (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.
INTERSTATE 605 was built in 1957 and reconstructed in 1995, making it 69 years old. The average bridge age in the United States is 48 years.
INTERSTATE 605 carries approximately 220K vehicles per day (average daily traffic). The bridge has 12 traffic lanes. It is 142.2 meters long and located on INTERSTATE 605 in 07-La-605-R19.85-Bwp, Los Angeles County, California.
No, INTERSTATE 605 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
INTERSTATE 605 is located 07-La-605-R19.85-Bwp in Los Angeles County, California. The bridge carries INTERSTATE 605 over Walnut Creek. Its coordinates are 34.060328, -118.000911. It is maintained by State Highway Agency.
INTERSTATE 605 carries INTERSTATE 605 over Walnut Creek. The bridge is 142.2 meters long and was built in 1957, with reconstruction in 1995.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.