STATE ROUTE 110
STATE ROUTE 110 in 07-La-110-30.10-Spas, Los Angeles County, California received a condition grade of C (59/100). Built in 1939, the bridge carries 130K vehicles daily on STATE ROUTE 110 over Ramp Stoney Arroyo Seco.
STATE ROUTE 110 carries a C on the BridgeSafety Condition Score with 59/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1939, making it 87 years old — well beyond the typical 50-year design life of bridges constructed in that era. Bridges of this vintage usually need substantial rehabilitation or replacement once their original components have aged out, regardless of current condition ratings. STATE ROUTE 110 carries an average daily traffic count of 130,000 vehicles, with 6 lane(s) crossing Ramp Stoney Arroyo Seco. 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
STATE ROUTE 110 is a 87-year-old bridge located 07-La-110-30.10-Spas in Los Angeles County, California. The bridge carries STATE ROUTE 110 over Ramp Stoney Arroyo Seco with 6 traffic lanes, handling approximately 130K vehicles per day. Built in 1939, the structure spans 131.7 meters.
The bridge received a Condition Grade of C (59/100) 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
STATE ROUTE 110 has a Condition Score of 59/100 (Grade C). 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.
STATE ROUTE 110 was built in 1939, making it 87 years old. The average bridge age in the United States is 48 years.
STATE ROUTE 110 carries approximately 130K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 131.7 meters long and located on STATE ROUTE 110 in 07-La-110-30.10-Spas, Los Angeles County, California.
No, STATE ROUTE 110 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 110 is located 07-La-110-30.10-Spas in Los Angeles County, California. The bridge carries STATE ROUTE 110 over Ramp Stoney Arroyo Seco. Its coordinates are 34.117586, -118.168883. It is maintained by State Highway Agency.
STATE ROUTE 110 carries STATE ROUTE 110 over Ramp Stoney Arroyo Seco. The bridge is 131.7 meters long and was built in 1939.
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.