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Gallatin County approves 298‑unit storage project amid resident warnings about Highway 191 safety
Summary
After extended public comment about traffic and safety, the Gallatin County Commission approved a buildings‑for‑lease‑or‑rent request for 298 storage units in the Rainbow Ranch/4 Corners area; residents and a licensed engineer said the applicant’s trip estimates and traffic analysis did not address cut‑through traffic on Elk Grove Lane and cumulative impacts.
The Gallatin County Commission voted Oct. 14 to approve a buildings‑for‑lease‑or‑rent (BLR) application by BDF Gateway LLC for 298 mini‑storage units across four lots in the Rainbow Ranch subdivision (lots 489–492). The application passed on a voice vote after an extended hearing focused on traffic, pedestrian safety and the county’s limited authority to require impact fees.
Planning staff (Haley Heiner) told commissioners the staff report had a correction to parcel and lot descriptions and that the BLR request complies with the 4 Corners zoning regulations (warehouse/self‑storage is allowed by right in the mixed‑use/commercial subdistricts) and with staff‑recommended conditions. The staff report noted available water, hydrant flow capacity for fire protection, and expected emergency response times.
Applicant Jeremy May of Headwaters Engineering argued the development will generate low traffic — “about 54 trips per day” using ITE trip‑generation estimates — and therefore does not trigger a formal traffic impact study. May said the applicant is pursuing a traffic signal permit with the Montana Department of Transportation (MDT) at Violet Road and U.S. Highway 191 and proposed that BDF Gateway LLC would fund the signal if permitted. “We're trying to set it up the best that we have the ability to,” May said, describing ongoing permitting work with MDT.
Several local residents and a licensed engineer urged the commission to take a broader view of cumulative traffic impacts. Thomas Kallenbach, a licensed engineer and Elk Grove resident, told the commission: “You're not looking at a traffic study. You're looking at an excerpt from a trip‑generation manual. There are no movements indicated… It doesn't include the multifamily homes.” Kallenbach and other commenters warned that drivers will cut through Elk Grove Lane and Blackwood Road to avoid delays on Highway 191, creating risks for neighborhood pedestrians and children.
Commissioners discussed the limits of BLR review and confirmed the county does not have an impact fee program to require developer payments for county road improvements. One commissioner said, "We don't have an impact fee program in Gallatin County," noting state law limits the county’s ability to impose that mechanism. Commissioners and staff also discussed noxious weed management compliance; the applicant said weed permits are in place and will be closed out when contracts for prior projects are complete.
After deliberation — and with multiple commissioners urging a future, more comprehensive plan from the landowner group to address cumulative impacts — a commissioner moved to adopt the staff findings and approve the BLR request for Mountain Gateway Mini Storage with staff recommended conditions. The motion was seconded and approved by voice vote. Permits and land‑use review steps remain before construction can begin.
