IS 70 E
IS 70 E in S 24 T 46 N R 6 E, St. Louis County, Missouri received a condition grade of B (74/100). Built in 2000, the bridge carries 143K vehicles daily on IS 70 E over Cst Cypress RD.
IS 70 E carries a B on the BridgeSafety Condition Score with 74/100. 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 2000, making it 26 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. IS 70 E carries an average daily traffic count of 143,423 vehicles, with 7 lane(s) crossing Cst Cypress RD. 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
IS 70 E is a 26-year-old bridge located S 24 T 46 N R 6 E in St. Louis County, Missouri. The bridge carries IS 70 E over Cst Cypress RD with 7 traffic lanes, handling approximately 143K vehicles per day. Built in 2000, the structure spans 34.1 meters.
The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
IS 70 E has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
IS 70 E was built in 2000, making it 26 years old. The average bridge age in the United States is 48 years.
IS 70 E carries approximately 143K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 34.1 meters long and located on IS 70 E in S 24 T 46 N R 6 E, St. Louis County, Missouri.
No, IS 70 E is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
IS 70 E is located S 24 T 46 N R 6 E in St. Louis County, Missouri. The bridge carries IS 70 E over Cst Cypress RD. Its coordinates are 38.742992, -90.385650. It is maintained by State Highway Agency.
IS 70 E carries IS 70 E over Cst Cypress RD. The bridge is 34.1 meters long and was built in 2000.
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.