Organization

The 175th was organized under TOE 5-207G. This TOE was rescinded 29 May 1968 and replaced with TOE 5-207H. TOE stands for Table of Organization and Equipment. This page shows the organization under the H-series TOE as we have not found a copy of the G-series document. The changes should be slight, and probably the actual 175th included a larger number of men and some earlier made equipment. This TOE shows a unit strength of 167, platoons had 36 men. For the record, a TOE is the basic document and the actual unit was organizied under a MTOE or Modified TOE that accounted for the specific mission and climate of Vietnam. If any veteran's memory can remember actual differences, we will be glad to post these to this page. The data for this page is from LTC (ret) Doug Lehmann.

SECTION I

1. MISSION. a. To increase the combat effectiveness of the Separate Light Infantry Brigade by providing engineer combat support.

b. To undertake and carry out an infantry combat mission when required.

2. ASSIGNMENT. Organic to Separate Light Infantry Brigade, TOE 77-100.

3. CAPABILITIES. a. At Level 1, this unit:

(1) Provides engineer staff planning and supervision for organic and attached engineer troops in conjunction with the brigade engineer section of TOE 77-102.

(2) Provides engineer reconnaissance and engineer intelligence for the brigade.

(3) Constructs, maintains and repairs roads, bridges, fords and culverts to facilitate the movement of the brigade.

(4) Provides general construction works including construction of assault landing strips.

(5) Provides atomic demolitions munitions (ADM) support, when reinforced with appropriate ADM teams from TOE 5-570, Engineer Combat Support Teams.

(6) Provides personnel and equipment for the purification and supply of potable water.

(7) Provides organizational maintenance on organic signal, wheeled, power generation, and engineer construction equipment.

b. The columns under Levels 2 and 3 adapt this table for reduced operational capabilities in decrements of 10%, from approximately 90% for Level 2 to 80% for Level 3.

c. This unit is not adaptable to type B organization.

d. The columns designated by Levels 1 through 3 are designed to relate to the categories established by AR 220-1, Unit Readiness and AR 135-8, Reserve Component Unit Readiness.

e. This unit is dependent upon the Administration Company, Separate Light Infantry Brigade, TOE 12-197, for personnel administration services.

f. Augmentation (see separate SRC): The capabilities of this unit are increased to the extent provided by the augmentation personnel and equipment.

g. Individuals of this organization can engage in effective, coordinated defense of the unit's area or installation.

4. BASIS OF ALLOCATION. One per Separate Light Infantry Brigade, TOE 77-100.

5. CATEGORY. This unit is designated a category I unit. (Reference unit categories, AR 310-25.)

6. MOBILITY. a. One hundred percent mobile in organic transportation.

b. Ninety percent air transportable by medium transport aircraft.

The numbers are paragraph numbers. The Company had three platoons with each platoon having three squads for a total of nine squads in the Company.

TITLE	GRADE	KEY EQUIPMENT
Company Commander Executive Officer First Sergeant Mess Steward Operations Sergeant Recon Sergeant Supply Sergeant Commo Chief Water Supply Team Chief First Cook (2) Company Clerk Construction Surveyor Recon Specialist Armorer Construction Draftsman Construction Specialist Cook (2) Field Radio Mechanic Water Supply Specialist (2) Field Wireman Light Vehicle Driver Supply Clerk Equipment Records Clerk	CPT LT E-8 E-7 E-7 E-6 E-6 E-5 E-5 E-6 & E-5 E-5 E-5 E-5 E-4 E-4 E-4 E-4 E-4 E-4 E-3 E-3 E-3 E-3	1 —Mine Detector - metalic 1 —Mine Detector - metalic and non-metalic 1 —7.62mm Machine Gun 2 —1/4 ton Truck 2 —3/4 ton Truck 2 —2-1/2 ton Truck 1 —10kw Generator Set 1 —Water Purification Set, 1500 GPH
NOTES: The Army did not authorize a Mail Clerk. Each unit found the right guy and gave him the job and did without somewhere else. He also was also the messenger and did whatever else the First Sergeant wanted done.

TITLE	GRADE	KEY EQUIPMENT
Construction Machine Supervisor Motor Sergeant Senior Crawler Tractor Operator (3) Senior Engineer Equipment Mechanic Senior Grader Operator (2) Senior Loader Operator (3) Senior Wheel Vehicle Mechanic Crawler Tractor Operator Engineer Equipment Mechanic (3) Equipment Records Clerk GP Power Generator Operator-Mechanic Loader Operator Senior Light Dump Truck Driver Welder Wheel Vehicle Mechanic (3) Engineer Equipment Maintenance Apprentice Light Dump Truck Driver (5) Wheel Vehicle Mechanic Helper PLL Clerk	E-7 E-7 E-5 E-5 E-5 E-5 E-5 E-4 E-4 E-4 E-4 E-4 E-4 E-4 E-4 E-3 E-3 E-3 E-4	1 —Shop Equipment Maintenance Truck 2 —Road Graders 4 —2 1/2cy Scoop Loaders 2 —10-ton Truck Tractors with 25-ton low bed semitrailers 2 —Medium Tractors (D7 dozer) 1 —3/4 ton Truck 1 —2 1/2 ton Truck 6 —2-1/2 ton Dump Trucks
NOTES: The 2nd rotation Generator man kept all 196th Brigade Headquarters generators wired and working!

TITLE	GRADE	KEY EQUIPMENT
Platoon Leader Platoon Sergeant Construction Specialist Light Dump Truck Driver Light Vehicle Driver Tool Room Keeper	LT E-7 E-4 E-3 E-3 E-3	1 —Mine Detector - metalic and non-metalic 2 —7.62mm Machine Gun 1 —Platoon Carpenters Tool Kit 1 —Platoon Pioneer Tool Kit 1 —Pioneer Electric Tool Outfit 1 —1/4 ton Truck 1 —2-1/2 ton Dump Trucks
NOTES: When the Platoon Leader took the jeep, the Platoon Sergeant had to use the dump truck to check a work site. The 2nd rotation never had a Platoon Leader for every platoon.

TITLE	GRADE	KEY EQUIPMENT
Squad Leader Assistant Squad Leader Demolition Specialist Construction Specialist (3) Demolition Assistant Light Dump Truck Driver Pioneer (2)	E-6 E-5 E-5 E-4 E-4 E-3 E-3	1 —Mine Detector - metalic 1 —Demolition Set 1 —Chain Saw 1 —Squad Carpenters Tool Kit 1 —Squad Pioneer Tool Kit 1 —2-1/2 ton Dump Trucks
NOTES: Dump truck drivers had Engineer MOS (Platoon Hqs also) while the Equipment and Maintenance Section used Transportation MOS for the same equipment. A constant struggle to select and train the dump truck driver.