Nucla Gravity Flow System Final Report

• Project Type: Ag/Muni Grant
• Contract/PO #: C153710
• Applicant: Town of Nucla
• Project Name: Raw Water Irrigation Project
• Title: Town of Nucla Raw Water Irrigation Project
• County: Montrose
• Water Conservation - Doc Type: Final Report

.. _ _._ _ _.__.____~_ ..._______-...-.....-:.-- _ ..._ ....:...:.--.._...._.._._ _...._.~-:.____ - -- -'---__.__.-<--...:.....0.-'--_ _.__ _...,"._ ...._ __ .. n.._ _ __ ."_'

..,~:~~:.-f;~? ~~~:~:

.

intersection of 4th . and Heron. Crossed Heron, set T and valve for further
expansion down Heron, 4" line per specs. Ran 220' to 4th.and Heron alley,
installed drain and flush valve here. Hooked 3" athletic service up and charged
line. This:first 980' took :from May 1Dltil August First 400' required extensive
rock removal and bedding. There were 9 1" taps and 1 3" tap.

STEP 6. Ran 420' to intersection of 5th. & alley at Main. 3 1" taps 90 degrees to go down
5th. This section took 45 days, extreme rock excavation, gas line close to main.
truck traffic serving business. This ended first years construction.

STEP 7. Ran 280' to intersection of Grape and 5th. Line reduced to 6" down Grape and
4" down 5th. Set valves at intersections. 1 tap approximately 10 working days.
Started end of April.

STEP 8. Ran 420' 6", 1 air vac at approximately 240'. 8 1" taps and services set valve on
6" and charged, approximately 20 working days.

STEP 9. Crossed intersection of 6th & Grape. Set T for 4" extension down 6th.
Continued down Grape for 420', 4 1" taps. Gas line on this run on our grade had
to be moved Set valve on 6" line and charged Approximately 15 working
. days.

STEP 10. Crossed intersection of 7th & Grape. Set T for 4" extension down 7th.
ContimJed d~wn Grape for 1,566'. Set valve on 6"line and charged. 71" taps
approximately 15 working days. . . .

STEP 11. Went 1,800' :from valve, did drain, air vac, pressure relief: 12 I" taps and 1 3"
tap at town parle. Approximately 20 working days.

SUMMARY

This project was started with the towns two Public Wodes employees, who also took care
of treatment, distribution and streets. Om- estimated time to construct was from March of
1994 to August of 1994.

.

Shortly after the start of construction we enco1Jllter'ed more rock than anticipated which
slowed. us considerably, some days we only achieved 8'. This also called for more
backfill. Also gas and sewer lines took more time, average of a day per crossing. When
we encomtered good soil we averaged 200 to 300' a day. The average tap installation
was 2 taps per day. The project would have gone better, but we also contended wi1h a
water plant at capacity and several water breaks. This is where I feel additional
employees would have gotten us closer to an on time schedule. Test holes also would have
given us a better idea of soil conditions and that's why I added it to Preliminary
Construction.