Federal Aviation Act (Part 77)
Obstruction Evlauation
In addition to the DOD‐established imaginary
surfaces, the FAA has also established guidance
to reduce the potential for accidents
surrounding an airfield. This guidance is
codified in the Code of Federal Regulations
Title 14, Part 77.13 (commonly referred to as
“Part 77”) and is used by the FAA to evaluate
obstructions. This regulation determines
compatibility based on the height of proposed
structures or natural features in relation to
their distance from the ends of a runway. The
guidance and process for obstruction
evaluation is more fully detailed in Section 4:
Existing Tools as it is not a military‐specific
element and is not a direct result of
Seymour Johnson AFB operations. It is included
here because of its relevance with Seymour
Johnson AFB. The FAA Part 77 Obstruction
Evaluation areas for Seymour Johnson AFB is
indicated on Figure 9. Note that this is in
addition to, not a replacement of, the
imaginary surfaces discussed previously.
Page 24
Figure 9
Pikeville
Johnston
County
Seymour Johnson AFB
FAA Part 77 Obstruction
Evaluation Areas
Wayne
Executive
Jetport
Princeton
§
¦
¨
795
£
¤
£
¤
13
70
¬
«
T
S
44
581
Legend
Up to 200' @ 3NM
Greene
County
Up to 300' @ 4NM
Up to 400' @ 5NM
Up to 500' @ 6NM
Installation Boundary
County Boundary
Goldsboro
JLUS County Partner
Municipal Boundary
Interstate
Wayne
County
US Highway
State Highway
Stream / River
Seymour
Johnson
AFB
£
¤
13
£
¤
Airport
70
La
Grange
Airfield Surface Area
T
S
903
Lenoir
County
T
S
111
b
a
117
Mount Olive
Municipal
Airport
Seven
Springs
Source:
Matrix Design Group, 2015.
Mount
Olive
Duplin
County
¬
«
55
0
1
2
3
Miles
Seymour Johnson AFB and Dare County Range JLUS Report