FM 3-34.22 - Army Electronic Publications & Forms - U.S. Army

Appendix B
AUGMENTING ENGINEER UNITS
B-6. As discussed in chapter 1, the organic engineer capability within the BCT and ACR is designed to
provide a baseline of combat capabilities to which augmentation can and typically will be added. METT-
TC analysis and the engineer requirements identified early in the planning phase determine the type and
amount of augmentation needed to support mission requirements. The primary means of augmenting the
BCT and ACR is baseline engineering units (combat and general engineering). The following paragraphs
summarize some of the baseline engineering units and their capabilities that can augment the BCT and
ACR. Depending on their number, augmenting units, likely come task-organized under an engineer
battalion headquarters to ensure effective C2.
ENGINEER BATTALION
B-7. The engineer battalion shown in figure B-7, page B-11, is capable of planning, integrating, and
directing the execution of combat and general engineering missions conducted by one to five assigned
engineer companies. Engineer battalions are typically found within the engineer brigade, within the MEB,
or in support of a BCT. The battalion receives design and/or survey teams or EHTs to facilitate
construction or EH clearance missions. When supporting a BCT, the battalion may be focused on a single
mission (route clearance, security construction, cache interrogation and reduction). The battalion may also
be organized to perform as a breach force command during BCT combined arms breaching operations.
During a gap-crossing operation, the battalion provides the option to be designated as the crossing-site
command.
SAPPER COMPANY
B-8. The Sapper company executes M/CM/S tasks in support of BCTs and support brigades to enable
force application, focused logistics, and protection. It often reinforces the organic engineers in the BCTs.
The Sapper company varies in design, though all are organized with three Sapper platoons (see figure B-8,
page B-12). Airborne- and air assault-capable Sapper companies have the unique ability to employ airdroppable,
rapid runway repair kits in support of forcible-entry operations.
MOBILITY AUGMENTATION COMPANY
B-9. The mobility augmentation company (MAC) conducts assault gap crossings, conducts mounted and
dismounted breaches, and emplaces obstacles in support of BCTs and support brigades to enable force
application, focused logistics, and protection. The MAC is equipped with a variety of assault-breaching
and countermobility equipment. It is organized with two assault breach platoons and one obstacle platoon
(see figure B-9, page B-13). It can provide four assault gap crossings for a BCT, four mounted breaches for
an IBCT or SBCT, two mounted breaches for an HBCT, and four additional dismounted breaches for a
BCT. It can emplace 4,432 linear meters of fix or disrupt tactical obstacle frontage without reloading.
CLEARANCE COMPANY
B-10. The clearance company conducts detection and limited IED neutralization (as outlined in FM 3-90)
along routes and within areas of support to enable force application, focused logistics, and protection. The
company provides battle command for three to five route, area, or Sapper platoons. In an area clearance
role it is capable of clearing 255 kilometers of two-way routes, 2 acres, 8,000 square meters per day. The
clearance company is equipped with a variety of EH-clearing equipment and is organized with three route
clearance platoons and one area clearance platoon (see figure B-10, page B-14).
ENGINEER SUPPORT COMPANY
B-11. The engineer support company provides rapid runway repair (RRR), constructs tactical UAS
airfields and LZs, performs initial base camp construction, and repairs and maintains ground LOCs. An
engineer support company is equipped with a variety of earth moving equipment and is organized with two
rapidly deployable, equipment–light (RDE-L) platoons and one rapidly deployable, equipment–medium
(RDE-M) platoon (see figure B-11, page B-15).
B-2 FM 3-34.22 11 February 2009