ANNUAL TOWER INSPECTION REPORT
Wisconsin Department of Transportation
SP4599 9/2007
Tower Site Name Date Inspected
BULB REPLACEMENT shall be performed for every incandescent beacon and obstruction lamp for each tower.
Replacement shall be performed in conjunction with the tower and lighting inspection. Strobes and LED lighting shall only
be replaced as needed. Contractor shall use only new, high-grade bulbs with Pyrex glass, long life, 130 volt rating. No
reimbursement will be made to Contractor for bulbs installed during the bulb change.
Indicate quantity and type of lamp (incandescent, LED or strobe) used on each tower.
Beacon – Quantity and Type Obstruction – Quantity and Type
TEST TOWER LIGHTING CONTROLLER AND ALARM SYSTEMS
Satisfactory Unsatisfactory
Darken photocell to verify night-mode lighting activation
Proper flashing or strobe of beacons and steady illumination of all obstruction lights
Daytime lighting is functioning properly, where applicable
Alarm system detects failure of tower lighting, as applicable at each tower site
Lighting Controller Model Number Controller Serial Number
ELECTRICAL AND LIGHTING INSPECTIONS
Satisfactory Unsatisfactory
Proper functioning of photocell
Proper functioning of flasher
Proper functioning of ALL bulbs after replacement
Inspect for damaged red obstruction lens
Inspect for damaged ruby liner and clear glass lens in beacon
Functioning of strobe light, if applicable
All strobe lights are working
Tower lighting electrical system
Junction box wiring and bulb sockets at all points above the photocell, specifically:
Tightness of electrical screw terminals – Tighten loose connections
Deterioration of insulation of electrical wiring
Evidence of overheating of electrical wiring
Bulb sockets condition – Number of sockets replaced:
Inspect and record incandescent lamp voltage at all sockets under load.
Socket 1 Socket 2 Socket 3
Level 1
Level 2
Level 3
Level 4
TOWER INSPECTION
Satisfactory Unsatisfactory
Attachment and physical condition of antennas and transmission lines
Site deterioration or vandalism
Proper conduit attachment - Repair or replace defective conduit attachments
Paint fading to be checked with the In-service Aviation Orange Color Tolerance Chart
Paint Good Paint OK Needs Painting
Guy anchor condition and integrity including turnbuckles, wire rope clamps and nuts
and safety cable through all turnbuckles; Inspect for sagging, rust and grounding
Guy attachments to tower
Tighten loose bolts and replace missing hardware on tower and attachments.
Tighten loose bolts and replace missing hardware on guys and anchors.
Replace missing or damaged safety cable through turnbuckles.
GUY WIRE TENSION - Inspect and provide guy tension measurement data for each applicable site. Direct Method of
measuring guy wire tension should be used.
Tension Meter Serial Number Air Temperature Cable Size
GUY LEVEL Proper Tension Measured Tension
Bottom to top Leg 1 Leg 2 Leg 3 Leg 1 Leg 2 Leg 3
1
2
3
4
5
Note: If the tower is plumb and readings are normal on one leg, no further measurements are necessary.
EXPLANATION OF UNSATISFACTORY CONDITIONS
Specification Section Description of Condition and Action Taken
Continue on next page as needed
