INTERSTATE 110
INTERSTATE 110 in 07-La-110-17.98-La, Los Angeles County, California received a condition grade of C (56/100). Built in 1996, the bridge carries 300K vehicles daily on INTERSTATE 110 over Slauson AVE & Bnsf Ry. It is classified as structurally deficient.
INTERSTATE 110 carries a C on the BridgeSafety Condition Score with 56/100. 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 1996, making it 30 years old — past the early-life period but still well within typical service life. Routine inspections and modest repair work are normal for bridges in this age band. INTERSTATE 110 carries an average daily traffic count of 300,000 vehicles, with 14 lane(s) crossing Slauson AVE & Bnsf Ry. 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
INTERSTATE 110 is a 30-year-old bridge located 07-La-110-17.98-La in Los Angeles County, California. The bridge carries INTERSTATE 110 over Slauson AVE & Bnsf Ry with 14 traffic lanes, handling approximately 300K vehicles per day. Built in 1996, the structure spans 48.7 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 4/9 (poor), superstructure 4/9 (poor), and substructure 7/9 (good). 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 110 has a Condition Score of 56/100 (Grade C). Its deck is rated 4/9, superstructure 4/9, and substructure 7/9 on the NBI scale. The bridge is classified as structurally deficient.
INTERSTATE 110 was built in 1996, making it 30 years old. The average bridge age in the United States is 48 years.
INTERSTATE 110 carries approximately 300K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 48.7 meters long and located on INTERSTATE 110 in 07-La-110-17.98-La, Los Angeles County, California.
Yes, INTERSTATE 110 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 110 is located 07-La-110-17.98-La in Los Angeles County, California. The bridge carries INTERSTATE 110 over Slauson AVE & Bnsf Ry. Its coordinates are 33.988922, -118.279961. It is maintained by State Highway Agency.
INTERSTATE 110 carries INTERSTATE 110 over Slauson AVE & Bnsf Ry. The bridge is 48.7 meters long and was built in 1996.
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.