SULLY RD.
SULLY RD. in 0.80fr625 0.30to847, Loudoun County, Virginia received a condition grade of F (0/100). Built in 1963, the bridge carries 127K vehicles daily on SULLY RD. over Cabin Branch. It is classified as structurally deficient.
SULLY RD. carries an F on the BridgeSafety Condition Score with 0/100 — the bottom tier of the FHWA NBI distribution. Component ratings flag the structure for near-term rehabilitation or replacement; the bridge may remain open to traffic but is on the priority list for action.
The bridge was built in 1963 and is now 63 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. SULLY RD. carries an average daily traffic count of 127,227 vehicles, with 7 lane(s) crossing Cabin Branch. 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
SULLY RD. is a 63-year-old bridge located 0.80fr625 0.30to847 in Loudoun County, Virginia. The bridge carries SULLY RD. over Cabin Branch with 7 traffic lanes, handling approximately 127K vehicles per day. Built in 1963, the structure spans 11.6 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). 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
SULLY RD. has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
SULLY RD. was built in 1963, making it 63 years old. The average bridge age in the United States is 48 years.
SULLY RD. carries approximately 127K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 11.6 meters long and located on SULLY RD. in 0.80fr625 0.30to847, Loudoun County, Virginia.
Yes, SULLY RD. 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.
SULLY RD. is located 0.80fr625 0.30to847 in Loudoun County, Virginia. The bridge carries SULLY RD. over Cabin Branch. Its coordinates are 39.016906, -77.432122. It is maintained by State Highway Agency.
SULLY RD. carries SULLY RD. over Cabin Branch. The bridge is 11.6 meters long and was built in 1963.
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.