FLOOD08833

• County: Las Animas
• Community: Near Trinidad
• Stream Name: Purgatoire
• Basin: Arkansas
• Title: Flood Control Problem Purgatoire near Trinidad
• Date: 1/1/1944
• Floodplain - Doc Type: Project

Report of the District Engineer-Continued.
. Plan of improvement recommended_____~___,_____________________
Estimate of first costs and annual oharges_ _ _ __..:.____________,______
Estimated average annual bene~ts-generaL- _ ______H_____________
Average annual benefits. Trinidad_ ~ _____ _________ _______________
A verago annual benefits-agricultural-crops, lands and improvementa_
.' Average annual benefits-transportation facilities, agricultural area__
Average annual benefits-irrigation struotures_____________~,...-----
Irrigation be~efits-flood detention_ _ _ __:. _ _ _ ___ _ _ _ _".. _ _ _ _ __ __ __ _ ~_
Irrigation benefits-less than bal~kfun stages___,-'~--------------___
Benefits-enhancement of values__ _ ___ _ _ _ __ __ __ __ __ ____ __ _ _~ _ ___
Summary of average annual benefits_________________.____________
Project justification___ _ _ _ _ _ __ _ _ _ __ __ _ _ __ __ _ _ _ _ _ _ _ _ __ __ _ _ _ _ _ ____
Flood channel delineation"'____ _ _ _ _ _____ __ __ __ __ _ _ _ _ _ ~ __ _ _ __ _ _ ___

.. g~cl~~\~~;S~='= = = = = = = = = = = = = = = = = = = = = =' = = = = = = = = ='= =:= = = :': = = = =: = = = =::

Iteeotn~cnaation________________________________~___~________.
Recommendation of the Division Engine!lr____~__________:-------.-.------

LI8'l' OF TABJ.ES MADE IN CONNECTION Wn'I(R.EPORT OF THE DISTRICT ENGINEER

Table;No.
1. Tributaries of Purgatoit'C River_~__.:.h__.:._____~_____________~__.:.
2. Purgatoire Rivet, river slopes and minimum channel 'ca.paoities_h_~
3. A vel'age monthly and annual temperatures and maximum and mini..
mum recoI;ded temperatures___________ __ _hW___ _________~___~
4. Uni~ed. Stn.~s Geologiesl Survey quadrangles covering Purgatoire

EUverBasln__________._____________________________________
5. Trend of ~opulation in Purgatoire River Ba8in________________~___
6. Population of principal communities in the Purgatoire Watershednw
7. Area overflowed (acres)_________________,--------~--.:-------~--_
8. Pcrtintmf, data on the five rescnroir plans suggested by local interests_ ~
9. Engineering features .of recommended channel impro.vement,at Trini-
dad,' Colo_ _ _ __ -:':-_ -- - -.- -,.,.,-~ - -'" -- - - - --,- - - -- -- - -- -,- ___ - _ - ___
10. Estimated firSt. costs"and' anilual' clutl'ges for recommen'ded plan 'Of
imb~~~~~~~:_~~~~~~~~~~______~_~__________________________ 28
Annual chal'ges_ __ ___________________ -___ ___ -_____________ 28
11. Summary ~f average annual benefits, Purgatoire River flood plain_ ~ 31
LIST OF ApPJlINDIXES MAPE IN CONNECTION WITH ,REPOR1' OF l'HE DJSTRICT
ENGINEER

(Only map' No,. l' and 9 of appendix A are printed.)

Appendix
A. Ma~'a~~~har.~: .
L 'Water,hed ma~.<
2. Valley details ,heet No.1).
3. Valley details sheet ,No.2).
4. V sUey det.u.ils sheet No.8).
5. Valley details lsheet No.4).
6. Valley details sllcet No.5).
7. Va.lley details sheet No.6).
8. Stream profile (sJleot No.1).
9. Recommended pIau of improvement (general pIau).
10. Recommended plan of improvement (plan and sections).
11. Recommended plan of improvement (profiles).
12. Recommended plan of improvement (structural details).
Chart No.
1. Economic limits of improvement (city of T'l:illidad).
B. Hydrology.
C. Economio data.
D. Pls.ns' 61 iiilpl'ovement, not recolllmended. .
E.. Resolu.tion of the city council, city of Trinidad, Cola., adopted March 8, 1943.

Pa~e
26
27
29
29
30
30
30
30
30
30
ill
32
33
33
36
36
37

Psg.
6
8

9

10
10
11
17
23

27