ATTACHMENT 4 - Questions and Answers.pdf

Q1 What is the quantity of mow-able acres A1

Total estimated acreage is approximately 205 acres. However, approximate calculation was taken from aerial imagery which does not account for slope. Total acreage could be higher. The total acreage could be higher. It is the responsibility of the Contractor to conform to the PWS and mowing maps regardless of what the actual acreage is.

Q2 What was the average number of days it took previous contractors to complete the mowing and trimming? A2 Four days.

Q3 What is the angle degree on the embankment? A3 Refer to PWS for slope

Q4 How long is the embankment? A4

The embankment is approximately 6 miles long. The length provided is only an estimate. It is the responsibility of the Contractor to conform to the PWS and mowing maps regardless of what the actual length of the embankment is.

Q5 Could you please provide any incumbent information if available such as the previous solicitation ID? A5 The current contract number is W9126G-21-D-0007.

Q6 Will all bids be submitted via PIEE? A6

Please refer to the Addendum to 52.212-1, Instructions to Offerors - Commercial Products and Commercial Services, which begins on page 40 of the solicitation.

Q7

I would like to clarify the due date for submission. The solicitation attachment states March 19, 2026, while the SF1449 form lists March 13, 2026. Could you please confirm the correct due date?

A7

Amendment 0001 was issued on 27 FEB 2026. The purpose of the amendment was to update the response due time zone to Central Daylight Time (CDT) and the response due date to 19

MAR 2026.

Q8 Can you confirm whether the mowing frequency is once per month for the seven months listed? A8

In accordance with ATTACHMENT - 2 within the Performance Work Statement, the tasks outlined within paragraph 5 shall be conducted (1) each month where it is shown in the chart.

Q9 Lastly, is there a current incumbent for this contract? If so, could you please provide the previous contract value? A9 Refer to Q5/A5 shown above.

Q10

We would like to know if this is a brand new contract OR if there is (was) an incumbent performing these services. If not brand new, could you please provide the current / previous contract number?

A10 Refer to Q5/A5 shown above.

Questions and Answers - W9126G-26-Q-A039 - Lewisville Lake Dam Mowing

Q11

Do you have acreage (or square footage) totals for each embankment mowing area (Dams 1–13) and for the spillway mowing area? If not, can you provide a GIS/CAD file (or a table) with calculated areas for each polygon shown on the mowing maps?

A11

The embankment is approximately 175 acres and the spillway is approximately 30 acres. However, approximate calculation was taken from aerial imagery which does not account for slope. The total acreage could be higher. It is the responsibility of the Contractor to conform to the PWS and mowing maps regardless of what the actual acreage is.

Q12

Are the map boundaries the definitive limits of work for both embankments and spillway, or are there any additional unmapped areas included/excluded (e.g., shoulders, access roads, tops/bottoms of slopes)

A12 Shaded areas on provided maps are the areas needing mowed. However, shaded areas are not precise and to scale.

Q13 Please confirm the total linear footage (or provide a map layer) of the riprap requiring the “3-foot strip from the roadway edge” trimming requirement.

A13

Approximately 8,000 feet. However, this may not be exact and all required mowing shall be conducted in accordance with the PWS and mowing maps. The footage provided is only an estimate. It is the responsibility of the Contractor to conform to the PWS and mowing maps regardless of what the actual footage of the riprap is.

Q14 Are there any sections of riprap that are excluded due to access/safety or protected areas, or is the requirement inclusive of all riprap along the dam roadway edge(s)?

A14 Refer to maps for areas required to be mowed or trimmed that may or may not include riprap.

Q15

Is there an inventory (or approximate count) of features that drive trimming/edging (fences, guardrails, signs, structures, culverts, etc.) within the mowing areas, or a map identifying dense “trim-only” zones?

A15 No.

Q16

Will mowing crews be permitted unescorted access after vetting, or should we assume escorted access will be required for some/all areas? If escorts are required, are escort hours limited to specific windows?

A16

Escorts are not required as long as the Contractor-employees are vetted through official protocol according to PWS.

However, all work shall be completed during office hours, which are between 8:00AM and 4:30PM, Monday through Friday. Mowing before and after these times is not allowed.

Q17 Are there designated staging/parking areas for contractor equipment and trailers near the dam/embankment and spillway work areas?

A17

No equipment shall stored on site by the Contractor longterm.

However, equipment may be left overnight during the period each month between the mowing beginning (typically on a Monday) and mowing ending (typically on that Friday). Stored equipment is not monitored by the Government and the Government is not liable for any damage, theft, vandalism, etc.

of the Contractor-furnished property.

Q18 For the monthly equipment/safety inspections: is the inspection expected once per month at the beginning of the mowing cycle?

A18 This information is addressed in paragraph 5.2.1.1 Equipment, located in the Performance Work Statement.

Q19 If herbicide is used, is there an approved herbicide list or an approval process (submittal requirements, timing, and point of approval) beyond providing applicator license and MSDS?

A19 Herbicide shall be EPA-approved for specific application

Q20 Can the Contractor store their mowing equipment on Corps of Engineers property? A20 Refer to Q17/A17.