Attachment 3 Appendix B_Repair Storm Water Drainage.pdf

FA4819-XX-R-XXXX

21 March 2022

APPENDIX B

MAPS, DRAWINGS AND OTHER

PROJECT SPECIFICS

REPAIR (RESTORE) STORM

WATER DRAINAGE 1200 AREA

TYNDALL AFB FLORIDA

PROJECT XLWU211017

ZONE A: Construct approx. 890 Feet of 4’ Trapezoidal channel with 2‘ concrete trickle channel in bottom

ZONE A: Remove and replace approx. 60’ of crossroad pipe with a 32”x49” elliptical pipe

ZONE A: Remove and replace approx. 270’ of 15” pipe with 18”x24” elliptical pipe

ZONE A: Construct approx. 470 of

Trapezoidal channel w/ 2’ Trickle channel in bottom. Replace 4 foot sidewalk and 22”x34” elliptical pipe.

ZONE A: Construct a 6’x6’ concrete FDOT junction box. Include outlets for new

32”x49”, 18”x24” pipe and trapezoidal channel

Zone B: Install approx. 750’ of trapezoidal channel with varying width between road and parking lot with 2’ trickle channel in bottom

ZONE B: Remove and replace the north and south entrance pipes with 22” x 34” elliptical pipes

ZONE B: Remove and replace entrance pipe with an 18”x24” elliptical pipe ZONE A: Construct approx. 200’ of trapezoidal channel

ZONE B: Reconstruct approx. 700’ of trapezoidal channel, no trickle Channel

ZONE A: Install 32”x49” entrance pipe at Fire Station

ZONE A: Regrade, topsoil and sod area between parking lot

CONSTRUCTION

LAYOUT

Silted pipes and Structures ---------------

Remove and Replace ---------------

Trapezoidal Channel =========

Trickle Channel ---------------

General Grading

Google Link https://earth.google.com/earth/d/1rbpvROqSpufxVODmKgyBokWZ6z1VxaeT?usp=sharing use this link to get live view of above

SOLAR ARRAY

Pipes and structures to be cleaned

GRADING AND CHANNEL WORK

AFNORTH at 0530 AM - 6 to 10 inches Higher in 2 Hours

Dejarnette and Beacon Beach Flooding

2021 Maintenance