Okaloosa County BOCC — September 3, 2013 — Cell Phone Waiting Area Feasibility and Alternatives Analysis — reading text

system and Sprint communication infrastructure are depicted in Photos 11 and 12 respectively. Based on the field location of the above-ground potions of these existing utilities, it appears that the irrigation control system may remain in place. However, the underground irrigation lines may be located under the proposed pavement and may need to be relocated around the waiting area. It appears that the other utilities identified in Exhibit 5 may remain in place. A detailed survey is recommended to determine the exact location of the existing underground utilities should this alternative is ultimately chosen for development. The FIDS message board is located just north of the new parking spaces to provide the best visibility to the CWA users and avoid the existing underground utilities. The communication improvements would run from the existing fiber optic infrastructure just west of the main parking lot toll booth to the FIDS location, at an estimated length of 500 If. The proposed new impervious area associated with this alternative is approximately 7,300 sf so a stormwater permit would typically be required prior to construction. Florida Department of Environmental Protection permit number 46-0160002-001-RG was processed in August 1999 that permitted the pond (identified as the “East Pond”) located just east of the proposed development location. Based on the permit documentation, the East Pond was constructed with an additional 0.86 ac-ft of storage volume remaining. The proposed improvements would only contribute approximately 0.007 ac-ft of runoff to this pond so the ~ wt GRAPHIC SCALE iM FEET wear ALT-4A ALT - 4B NOTE: EXISTING CONDTIONS HAVE NOT BEEN SURVEYED. ( OKALOOSA COUNTY AIRPORTS AVCON AVCON, INC. ENCES 4 FLUORES, 1s earn GE sate A EVEL ES "Sree amy osate. van wan eset Somronat Senta op actuation mame tt ae NORTHWEST FLORIDA REGIONAL AIRPORT CELL PHONE WAITING AREA FEASIBILITY AND ALTERNATIVES ANALYSIS ALTERNATE NO. 4: EAST LOOP ROAD (16-21 SPACES) [i toresan oettan comme arco oar oataacton sirecoucton os oh on of ten Cou SSTotm rat a ere REVISIONS: NOT ote | sy |cescRonon = din SCALE: 1" = 40° DESIGNED BY: irc. DRAWN BY: JAW. CHECKED BY: arc. APPROVED BY: V.CL OATE: SEPTEMBER 2013 AVCON PROJECT NO. 2013.050.05 EXHIBIT 5 Cell Phone Waiting Area Feasibility and Alternatives Analysis September 2013 existing permit and associated pond are presumed to be adequate for this alternative development. Therefore, based on this information, no new stormwater permitting is anticipated. The stormwater infrastructure improvements are anticipated to include a standard inlet collection and pipe conveyance system to convey the stormwater runoff to the pond located just east of the alternative. Photo 11: Existing irrigation control Photo 12: Existing Sprint system communication infrastructure The infrastructure improvements for Alternative No. 4A generally include: Remove existing landscaping to include palm trees and bushes, Relocate existing irrigation lines and other utilities as needed, Grading and sodding, Remove existing parking lot light Install three new parking lot lights Install approximately 850 sy of new asphalt pavement, Install wheel stops Install 3-ft wide by concrete island, Place new pavement markings and vehicular signage Stormwater conveyance improvements, Install FIDS message board and communication and power infrastructure, and Install of communication and WiFi access point infrastructure CAST TaANMGOODDS Cell Phone Waiting Area Feasibility and Alternatives Analysis September 2013 A preliminary project budget for Alternative No. 4A is provided below in Table 4. The Professional Design and Bidding Services task includes a design survey due to the impervious improvements and existing utilities in the area. A design survey would also be required upon completion of the project to meet FDEP requirements. Table 4: Preliminary Project Budget for Alternative No. 4A constr. Description Quantity Unit Price Total A Removal of landscaping lump sum $6,000 $6,000 B Relocation of irrigation lines lump sum $4,000 $4,000 Cc Grading and sodding lump sum $5,000 $5,000 D Remove existing parking lot light 1 ea $2,000 $2,000 E Install new parking lot light 3 ea $6,000 $18,000 F Placement of new asphalt pavement 850 sy $40 $34,000 G Wheel stops 16 ea $250 $4,000 H Install 3-ft wide concrete island 55 sy $50 $2,750 I Place pavement markings and signage lump sum $4,000 $4,000 J Stormwater conveyance lump sum $15,000 $15,000 K FIDS message board and improvements lump sum $35,000 $35,000 K FIDS mounting structure lump sum $10,000 $10,000 K Communication and power to FIDS board 500 If $15 $7,500 L WiFi access point infrastructure lump sum $3,000 $3,000 Professional Design and Bidding Services lump sum $35,000 $35,000 Preliminary Budget: $185,250 Alternative No. 4B is similar to 4A; however, Alternative No. 4B provides 90-degree parking in lieu of the proposed 45-degree parking in Alternative No. 4A. The Alternative No. 4B layout is depicted in Exhibit 5. The proposed 90-degree parking layout provides 21 total parking spaces which is 5 additional parking spaces compared to Alternate No. 4A. The Okaloosa County Land Development Code requires a 24-ft wide access aisle adjacent to 90-degree parking spaces, as depicted in the exhibit. This alternative requires the placement of approximately 1,050 sy of new asphalt pavement which is approximately 200 sy more than Alternative No. 4A. This larger development area may also impact additional existing utilities. The existing irrigation panel and controller would be located inside of the pavement limits so it would be required to be relocated outside of the new parking limits. The FIDS message board location would be located just east of the new parking spaces and as far from the parking as practical to provide visibility for the northernmost and southernmost spaces, and also avoid the existing utilities. The infrastructure improvements are similar to those identified for Alternate No. 4A and the stormwater runoff from this alternative will be accounted for in the existing East Pond so no new stormwater permitting is anticipated. 10 Cell Phone Waiting Area Feasibility and Alternatives Analysis September 2013 A preliminary project budget for Alternative No. 4B is provided in Table 5. Table 5: Preliminary Project Budget for Alternative No. 4B vena Description Quantity Unit Price Total A Removal of palm trees and landscaping lump sum $6,000 $6,000 B Relocation of utilities lump sum $10,000 $10,000 Cc Grading and sodding lump sum $6,000 $6,000 D Remove existing parking lot light 1 ea $2,000 $2,000 E Install new parking lot light 3 ea $6,000 $18,000 F Placement of new asphalt pavement 1050 sy $40 $42,000 G Wheel stops 21 ea $250 $5,250 H Install 3-ft wide concrete island 50 sy $50 $2,500 Place pavement markings and vehicular lump sum $4,500 $3,000 signage J Stormwater Conveyance lump sum $15,000 $15,000 FIDS message board and K rarebiars/eaitwere improvements Ha eS $35,000 iene K FIDS mounting structure lump sum $10,000 $5,000 Communication and power cables to FIDS K | messageboard P 450 If $15 $6,750 L WiFi access point infrastructure lump sum $3,000 $3,000 Professional Design and Bidding Services lump sum $35,000 $35,000 Approximate Total: | $194,500 3.5 Recommended Development Alternative The four alternatives detailed above have been evaluated and a matrix has been prepared to summarize the characteristics of each alternative. Table 6: Alternative Evaluation Matrix . Access to , Approx. Ne iatok Mee a viaaily Terminal shone Cost per Other Comments , Loop Road Space Most efficient access to 37 spaces are terminal; however, 1 41 within the Yes $105,150 | $2,565 reduces the number of readability angle spaces available in the Credit Card Parking Lot Ves, Gut the Potential budget eeslemimnosl increase if existin 2 30 spaces are Yes $175,975 | $5,866 ia, 9 utilities must be cut to approx. 680 ft ralooate from the FIDS Yes, but the Drivers must make a westernmost cars complete loop on the = is are approx. 450 ft ties 984,225 $6,016 terminal loop road to from the FIDS access the terminal 4a | 16 misty wo fal Yes $185,250 | $11,578 | _, Potential budget spaces increase if existing Visible to all utilities are located ae al spaces Yes $194,500 | $9,262 under new pavement 1] Cell Phone Waiting Area Feasibility and Alternatives Analysis September 2013 Based on the alternatives analysis and the evaluation matrix, it appears that Alternative No. 1 exceeds the target number of parking spaces, provides the most economical cost from a cost per parking space analysis, and the second most economical development cost. The relatively low development cost is in part due to the re-designation of a portion of the existing Credit Card Parking Lot. This alternative provides a total of 41 parking spaces with 37 of these parking spaces within the FIDS message board readability angle. Alternative No. 3 appears to provide the lease capital cost; however, this alternative provides less than half of the target number or parking spaces. In consideration of the number of parking spaces, efficient access to the terminal loop road, and the approximate budget, Alternative No. 1 is the recommended development alternative. A construction contingency is not included in the preliminary budgets since this analysis is a comparison of the relative cost of each alternative. At least a 25% contingency is recommended to budget for each alternative to account for unforeseen design and construction requirements which may be identified during the design phase. 4. Contact Information AVCON Inc. was retained by Okaloosa County Airports to prepare this report. For questions or comments regarding this report, please contact: Tracy Stage, A.A.E. Deputy Airports Director Okaloosa County Airports 1701 State Road 85 N. Eglin AFB, Florida 32542 (850) 651-7160 END OF REPORT 12