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General Comments
SYSTEM NO. 6
DURNELL DITCH
The watershed drained by Stream System No.6 consists of 3.50
square miles in the west-central portion of Allen County. Located
at the west edge of Ft. Wayne, the watershed is appro~imately 3
miles long (north to south) and varies up to 2 miles wide (east
to west). Durnell Ditch is the main drain of System No. 6 which
outlets into the Graham-McCulloch Branch at 'South Bend Drive.
The drainage area west of Hadley Road has remained predominantly
rural while that east of the road has been heavily developed.
Intensive land use conversion is occuring in the few undeveloped
areas along Durnell Ditch. Curve number 85 was used throughout
the watershed for the flood routings.
Significant heading-up of the Standard Project Flood is depicted
in the Flood Profiles to occur at Interstate 69, State Road 14
and the Norfolk and Western R.R. The lOO-Year flood is sho~ to
back up behind the sediment control structure situated just
upstream of the Norfolk and Western R.R. Both the .Norfolk and
Western R.R. and State Road 14 were flood routed as structures.
As a result, flood peak discharges downstream of the railroad were
significantly reduced, thereby lowering flood profiles in the
channel reach just downstream of the railroad. Flood profiles
below both of the aforementioned flood routed reservoirs would be
higher if the impoundments were removed.
1
Object Description
| Title | Flood hazard analyses: selected streams Allen County, Indiana |
| Creator | United States. Soil Conservation Service |
| Topic | Floodplain, Floods |
| Subject |
Floods--Indiana--Allen County Flood damage prevention--Indiana--Allen County |
| Geographical Coverage | Allen County, Indiana |
| Date of Original | November 1974 |
| Time Period | 1900-1999 |
| Source | Print version: United States. Soil Conservation Service. Flood hazard analyses: selected streams Allen County, Indiana. (Indianapolis, Ind.: United States Department of Agriculture Soil Conservation Service, 1974), 1 v. |
| Additional Availability | Print version might be available at IPFW Helmke Library. See online catalog. |
| Rights | Copyright Indiana University-Purdue University Fort Wayne, 2006- . All rights reserved. May not be reproduced without permission. For information regarding reproduction and use see: http://cdm16776.contentdm.oclc.org/cdm/about/collection/p16776coll1/ |
| Date Digitally Created | April 17 2012 |
| Digital Publisher | Walter E. Helmke Library, Indiana University-Purdue University Fort Wayne |
| Digitization Specifications | Missing: Table 1, sheet 3 of 3; Plate 3, sheet 2 of 8, 8 of 8; System 1: exhibit B, sheets 1-4 of 4; exhibit C, sheet 1 of 3; System 2: exhibit B, sheets 1-6 of 6, exhibit C, sheets 1-2 of 3; System 3: exhibit B, sheets 1-4 of 4; System 4: exhibit B, sheets 1-4 of 4; System 5: exhibit B, sheets 1-2 of 2, exhibit C, sheet 1 of 1; System 6: exhibit B, sheets 1-2 of 2; System 7: exhibit B, sheets 1-5 of 5, exhibit C, sheet 1 of 3; System 8: exhibit B, sheets 1-2 of 2; System 9: exhibit B, sheets 1-2 of 2; System 10: exhibit A; exhibit B, sheets 1-8 of 8; exhibit C, sheet 3 of 6. This pdf file was derived from black and white, 400 dpi, 1-bit; grayscale 300 dpi, 8-bit; and color 300 dpi, 24-bit uncompressed TIFF images that were scanned from the originals using a Fujitsu 5750C scanner with Adobe Acrobat 8.0 Professional scanning software. |
| Content Type | Text |
| Digital Format | text/pdf |
| Collection | Fort Wayne Area Government Information |
| Identifier | 30000122011855 |
| File Name | 30000122011855.pdf |
Description
| Title | Page 84 |
| Transcript | General Comments SYSTEM NO. 6 DURNELL DITCH The watershed drained by Stream System No.6 consists of 3.50 square miles in the west-central portion of Allen County. Located at the west edge of Ft. Wayne, the watershed is appro~imately 3 miles long (north to south) and varies up to 2 miles wide (east to west). Durnell Ditch is the main drain of System No. 6 which outlets into the Graham-McCulloch Branch at 'South Bend Drive. The drainage area west of Hadley Road has remained predominantly rural while that east of the road has been heavily developed. Intensive land use conversion is occuring in the few undeveloped areas along Durnell Ditch. Curve number 85 was used throughout the watershed for the flood routings. Significant heading-up of the Standard Project Flood is depicted in the Flood Profiles to occur at Interstate 69, State Road 14 and the Norfolk and Western R.R. The lOO-Year flood is sho~ to back up behind the sediment control structure situated just upstream of the Norfolk and Western R.R. Both the .Norfolk and Western R.R. and State Road 14 were flood routed as structures. As a result, flood peak discharges downstream of the railroad were significantly reduced, thereby lowering flood profiles in the channel reach just downstream of the railroad. Flood profiles below both of the aforementioned flood routed reservoirs would be higher if the impoundments were removed. 1 |
