COUNTY LINE EXPWY
COUNTY LINE EXPWY in W. Norriton 27j9/3366c3, Montgomery County, Pennsylvania received a condition grade of A (93/100). Built in 2019, the bridge carries 151K vehicles daily on COUNTY LINE EXPWY over South Trooper Road.
COUNTY LINE EXPWY carries an A on the BridgeSafety Condition Score with 93/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 2019 and is 7 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. COUNTY LINE EXPWY carries an average daily traffic count of 150,726 vehicles, with 4 lane(s) crossing South Trooper Road. 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
COUNTY LINE EXPWY is a 7-year-old bridge located W. Norriton 27j9/3366c3 in Montgomery County, Pennsylvania. The bridge carries COUNTY LINE EXPWY over South Trooper Road with 4 traffic lanes, handling approximately 151K vehicles per day. Built in 2019, the structure spans 34.7 meters.
The bridge received a Condition Grade of A (93/100) based on Federal Highway Administration inspection data. Its deck is rated 8/9 (good), superstructure 8/9 (good), and substructure 9/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
COUNTY LINE EXPWY has a Condition Score of 93/100 (Grade A). Its deck is rated 8/9, superstructure 8/9, and substructure 9/9 on the NBI scale. The bridge is not classified as structurally deficient.
COUNTY LINE EXPWY was built in 2019, making it 7 years old. The average bridge age in the United States is 48 years.
COUNTY LINE EXPWY carries approximately 151K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 34.7 meters long and located on COUNTY LINE EXPWY in W. Norriton 27j9/3366c3, Montgomery County, Pennsylvania.
No, COUNTY LINE EXPWY is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
COUNTY LINE EXPWY is located W. Norriton 27j9/3366c3 in Montgomery County, Pennsylvania. The bridge carries COUNTY LINE EXPWY over South Trooper Road. Its coordinates are 40.109019, -75.420122. It is maintained by State Highway Agency.
COUNTY LINE EXPWY carries COUNTY LINE EXPWY over South Trooper Road. The bridge is 34.7 meters long and was built in 2019.
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.