Chain Bridge Road Shared Use Path

Project description

The City of Fairfax proposes to construct a shared use path along Chain Bridge Road, running from Assembly Drive to Northfax Street. The corridor geometry was resolved at approximately 603 feet in length. The parcel associated with this project (PIN 57 2 18 001 A) encompasses a polygon area of approximately 3.65 acres per geocode resolution. No data on existing use, square footage, assessed value, or employment at the project parcel were available in the source documents; all corresponding confidence levels are rated low. The project's current development status is listed as unknown in the city's project directory as of July 18, 2026.

Trail effects

Trail-user spending channel. The model identifies a decay-weighted catchment population of 40,955 residents (low: 26,188 / high: 57,967), drawing on walk-network distances from a single resolved trail access point and applying an exponential distance-decay curve calibrated to trail-trip behavior (Iacono, Krizek & El-Geneidy, MnDOT 2008). Applying an annual use rate of 12 user-days per catchment resident (low: 6 / high: 20) — drawn from three ordinary urban greenways in the NCDOT/ITRE (2018) four-trail study — yields an estimate of 491,457 annual trail user-days (low: 157,131 / high: 1,159,331). At a spending rate of $7.50 per user-day (low: $6.00 / high: $11.00), consistent with the American Tobacco Trail ($6.24), Little Sugar Creek ($7.27), and Brevard ($10.93) surveys from the same study, total annual trail-user spending at nearby businesses is estimated at $3,685,924 (low: $942,785 / high: $12,752,640). These figures are screening estimates anchored to ordinary urban greenway behavior; destination-trail tourism (e.g., overnight visitors) is deliberately excluded from the anchors. If this path plausibly draws overnight visitors, the spending estimates should be regarded as conservative.

Individual business-level capture estimates, allocated by walk-decay Huff probabilities from the access point, range from approximately $7,739 to $24,060 per year for the highest-scoring nearby businesses in the model. These are illustrative allocations, not forecasts for any specific establishment.

Property value channel. The 435 parcels within 1,650 feet (approximately one-third of a mile) of the trail line carry a combined assessed value of $536,356,400. Applying a proximity premium drawn from Crompton and Nicholls (2019), which synthesizes 20 hedonic analyses and finds typical premiums of 3%–5% for homes near trails, yields a potential one-time capitalization of $16,090,692 at the central estimate (low: $0 / high: $26,817,820). The lower bound of zero is not a rounding convention — it reflects genuine null findings in some comparable studies (including an Indianapolis trail study and the NCDOT regression on the American Tobacco Trail, which produced statistically insignificant results of 0.7%–2.6%). For unpaved or low-connectivity facilities, holding to the lower half of the interval is advisable. If the premium does capitalize into assessed values, the implied annual real estate tax increment is $172,573 (low: $0 / high: $287,621); this is a recurring benefit only to the extent that periodic reassessments incorporate the premium. The tax increment figures are screening estimates dependent on both the literature premium range and the timing of assessment cycles.

Not evaluated in this version

The economic impact module (multiplier effects, employment), fiscal impact module (net cost-revenue analysis), bike-lane corridor module (this facility was classified as a shared use path rather than a bike lane, so the bike-lane model was not triggered), network connectivity analysis, environmental impact assessment, and comparable-places case studies were all deferred and are not included in this version of the report; they may be added in a subsequent analysis phase.