FLOOD09461

• County: Weld
• Community: Weld-Big Thompson
• Stream Name: Big Thompson River
• Basin: South Platte
• Title: Weld - Big Thompson Community File
• Date: 1/1/2001
• Prepared For: CWCB
• Prepared By: CWCB
• Floodplain - Doc Type: Community File

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BELL SURVEYING INC.
BELL ENGINEERING INC.
BELL MAPPING INC.

land surveyors
ei,,1I el'll!li",eering . lanGf development
photog ram metric service

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June 11, 1975

Weld County, Colorado
,! Office of the Planning Commission
1516 Hospital Road
,,' Greeley. Colorado 80631
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RECEfVfO
JUN 13 1975

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COLO. WATER
CONSERVATION BOARD

Attn: Mr. Gary Z. Fortner

Dear Mr. Fortner:

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We are pleased to submit our amended proposal for mapping of the flood
plain of the Big Thompson River in Weld County as per the folr'owing specificatioft8.

Bell Mapping Company will provide all material and labor to deliver the
, following items:

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Item 1. Flying and photography to deliver three sets of 9" X 9" contact
prints on double weight semi-matte paper at the negative scale
of 1:12000 with 60% t 5% end lap. Requirements for photographic
quality, overlap, etc. would be in accordance with,Standard
Specifications for Aerial Photography for Photogrammetric Mapping,
published by the U.S. Geological Survey dated January 15, 1972.

Item 2. Topographic mapping finished draft on 4 mil mylar, prepared by the
scribing method at the scale of 1" .. 200' with 4' contour intervals
with 2' supplementary contours for depths up to 30' above the left
and right stream banks, all planimetric features would be shown for
the mapping area shown on your map. You would receive two sets of
, B/W prints at the scale of 1" .. 200'. The topographic mapping would
comply with National Map Accuracy Standards for topographic mapping
at the scale of 1" .. 200' with 4' contour interval.

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500 KALAMATH STREET
. Richard L. Powers. L.S.'

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. DENVER COLORADO 80204 .
Willlem M. McCall. P. E.
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iELEPHONE 303/266-1974
Richard A. Gossett. L. S.