INTERSTATE 5
INTERSTATE 5 in 03-Sac-005-22.42-Sac, Sacramento County, California received a condition grade of B (75/100). Built in 1971, the bridge carries 138K vehicles daily on INTERSTATE 5 over S5-E50 Conn Rp Broadway.
INTERSTATE 5 carries a B on the BridgeSafety Condition Score with 75/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1971 and is now 55 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. INTERSTATE 5 carries an average daily traffic count of 138,000 vehicles, with 7 lane(s) crossing S5-E50 Conn Rp Broadway. 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 5 is a 55-year-old bridge located 03-Sac-005-22.42-Sac in Sacramento County, California. The bridge carries INTERSTATE 5 over S5-E50 Conn Rp Broadway with 7 traffic lanes, handling approximately 138K vehicles per day. Built in 1971, the structure spans 106.1 meters.
The bridge received a Condition Grade of B (75/100) 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 5 has a Condition Score of 75/100 (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 5 was built in 1971, making it 55 years old. The average bridge age in the United States is 48 years.
INTERSTATE 5 carries approximately 138K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 106.1 meters long and located on INTERSTATE 5 in 03-Sac-005-22.42-Sac, Sacramento County, California.
No, INTERSTATE 5 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 5 is located 03-Sac-005-22.42-Sac in Sacramento County, California. The bridge carries INTERSTATE 5 over S5-E50 Conn Rp Broadway. Its coordinates are 38.566750, -121.512272. It is maintained by State Highway Agency.
INTERSTATE 5 carries INTERSTATE 5 over S5-E50 Conn Rp Broadway. The bridge is 106.1 meters long and was built in 1971.
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.