The ability to effectively inventory, and assess the condition of assets for data driven planning and, performance management is critical for municipalities, planning commissions, and state agencies. Around New Hampshire, state, regional, and local governments are in various stages of data collection initiatives. For transportation, a primary focus of these initiatives is critical infrastructure such as: drainage, road side restraint systems (guardrails) and public access ways (sidewalks & crosswalks). To effectively and uniformly collect this type of data on a statewide level, developing a structure that provides specifications, methods, training, and data exchange services for all stakeholders is essential. The SADES effort is a result of a partnership between the NH Department of Transportation (NHDOT), the NH Department of Environmental Security (NHDES), and the UNH Technology Transfer Center (T2).
Currently Strafford Regional Planning Commission in involved with two efforts that fall within the Statewide Data Asset Exchange System (SADES).
As part of the Statewide Asset Data Exchange System (SADES), the goal of this effort is to complete a comprehensive inventory of drainage culverts serving public roadways in all 18 SRPC communities, in order to provide state agencies and local public works planning departments with information necessary to appropriately prioritize culvert repair and replacement projects as well as. The ultimate goal for this project is to reduce future roadway closures, hazards, and property damage.
Culvert locations were identified using Geographic Information System (GIS). The latest roads and stream/river shapefiles were used to develop a point shapefile showing the probable locations of culverts within each community in the planning region.
For more information on the work completed by Strafford Regional Planning Commission please view our Culvert Assessment Program Overview Flyer.
The data collection methodology for this project is based largely on the Vermont Stream Geomorphic Assessment (VSGA) and was tailored to New Hampshire with assistance from the Piscataqua River Estuaries Program (PREP), the University of New Hampshire, New Hampshire Geologic Survey (NHGS), and various other state agencies. Upon identification of culvert locations, two (2) person teams visited each structure during the spring & summer months in order to determine and record its location, material type and condition, size, slope, flow condition, grade, approach angle, depth, extent of sediment deposit, bank erosion, predominant vegetation type and presence of wildlife using a Microsoft Access database and methodology provided by the NH Geologic Survey . Upon completion of inventory procedures, Microsoft Publisher was utilized to create a standard culvert report for each municipality displaying major attribute information, culvert location maps, and corresponding picture.
Beginning in the summer of 2014, field work interns began collecting data using ArcCollector by inputting spatial information into iPads that were brought into the field. The information was then loaded in a database the NHDOT could also access. The interns and staff were still responsible for QA/QC processes and the 2014 summer data collection season for culverts was highly successful.
The sidewalk inventory protocol is a new program that Technology Transfer Center (T² is working on). SRPC staff have been working with T² to test their protocols for use in the upcoming field work seasons. New technologies are being utilized to make data collection form effiiceint and uniform across the state.
The SADES Road Surface Management System (SRSMS) program aims to address the challenge of maintaining New Hampshire's local roads. Detailed information about the condition of locally-owned roads is currently limited and municipalities must maintain critical facilities with limited budgets. The SRSMS program began in the summer of 2015 when each Regional Planning Commission (RPC) completed a roadway inventory of a partner municipality. Upon completion, this phase was followed by a quality assurance and control process. The road conditions were then mapped in the SADES online program.
Strafford Regional Planning Commission completed a pilot of the SADES Road Surface Management System (SRSMS) program in the Town of Rollinsford. This pilot was a collaborative effort of the New Hampshire Department of Transportation, the University of New Hampshire Technology Transfer Center, and the New Hampshire Association of Regional Planning Commissions.
View the Road Surface Management System Pilot Final Report for Rollinsford, NH below.
Culvert_Flyer [Culvert PDF Document ]
2013 SRPC Culvert Protocol [.PDF ]
2013 SRPC Culvert Protocol [.PDF ]
Strafford Regional Planning Commission
150 Wakefield Street, Suite 12
Rochester, New Hampshire 03867
Tel: (603) 994-3500 Fax: (603)994-3504