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This collection of information is voluntary and will be used toestablish and inventory of the number of noise barriers constructed in 2011-2013. Public reporting burden is estimated to average 8 hour per response, including the time for reviewing instructions searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Please note that an agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number. The OMB control number for this collection is 2125-XXXX. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to: Michael Howell, Information Collection Clearance Officer, Federal Highway Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590. |
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FHWA Noise Barrier Inventory |
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Field Name |
Field Description |
Response |
| 1 |
Inventory ID |
System generated |
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| 2 |
Noise Barrier ID |
System generated |
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| 3 |
Name |
Barrier name |
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| 4 |
State |
Location - State |
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| 5 |
County |
Location - County |
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| 6 |
City |
Location -City |
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| 7 |
Route |
Location - Route |
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| 8 |
Current Year Cost |
Construction cost - adjusted for current year |
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| 9 |
Original Construction Cost |
Construction cost - in year of construction |
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| 10 |
Construction Unit Cost |
Calculated: Original Construction Cost/Area Sq Ft |
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| 11 |
Average Ht Feet |
Height of barrier (avg, in feet) |
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| 12 |
Average Ht Meters |
Height of barrier (avg, in meter) |
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| 13 |
Length Feet |
Length of barrier (avg, in feet) |
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| 14 |
Length Meters |
Length of barrier (avg, in meter) |
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| 15 |
Area Sq Ft |
Area of barrier (avg, in sq feet) |
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| 16 |
Area Sq Meters |
Area of barrier (avg, in sq meter) |
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| 17 |
Year of Original Construction |
Year when barrier was constructed |
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| 18 |
Avg Noise Reduction |
Average reduction in overall noise levels due to barrier |
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| 19 |
NAC Category |
Noise Abatement Criteria activity category |
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| 20 |
Primary Construction Material |
Predominate material used in the barrier |
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| 21 |
Other Construction Material |
Secondary material used in the barrier |
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| 22 |
Features |
Surface and absorptive characteristics of the barrier |
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| 23 |
Foundation |
Material used in foundation of barrier |
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| 24 |
Project Type |
Type I, II, or III (each type meet conditions per policy) |
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| 25 |
Funding Type |
Source of funding used to construct or repair barrier |
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| 26 |
GIS Location of Barrier |
Lat/long of barrier |
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| 27 |
Repair Date |
Date of barrier's repair |
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| 28 |
Repair Location |
Location of barrier's repair (lat/long) |
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| 29 |
Overall Repair Cost |
Cost of repair |
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| 30 |
Repair Reason |
Reason for repair |
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| 31 |
Primary Repair Material |
Predominate material used to repair the barrier |
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| 32 |
Other Repair Material |
Secondary material used to repair barrier |
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| 33 |
Repair Features |
Characteristics of the repair |
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FHWA - NB100 |
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Febrary 2014 |