INTERSTATE 605
INTERSTATE 605 in 07-La-605-R15.37-Idy, Los Angeles County, California received a condition grade of F (0/100). Built in 1964, the bridge carries 233K vehicles daily on INTERSTATE 605 over Rose Hills Channel. It is classified as structurally deficient.
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 62-year-old bridge located 07-La-605-R15.37-Idy in Los Angeles County, California. The bridge carries INTERSTATE 605 over Rose Hills Channel with 10 traffic lanes, handling approximately 233K vehicles per day. Built in 1964, the structure spans 10.8 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
INTERSTATE 605 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.
INTERSTATE 605 was built in 1964, making it 62 years old. The average bridge age in the United States is 48 years.
INTERSTATE 605 carries approximately 233K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 10.8 meters long and located on INTERSTATE 605 in 07-La-605-R15.37-Idy, Los Angeles County, California.
Yes, INTERSTATE 605 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.
INTERSTATE 605 is located 07-La-605-R15.37-Idy in Los Angeles County, California. The bridge carries INTERSTATE 605 over Rose Hills Channel. Its coordinates are 34.015742, -118.054875. It is maintained by State Highway Agency.
INTERSTATE 605 carries INTERSTATE 605 over Rose Hills Channel. The bridge is 10.8 meters long and was built in 1964.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.