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  5. ›Embankment Stabilization at Rainbow Lake Dike

TOWNSHIP OF PARSIPPANY-TROY HILLS·New Jersey

Embankment Stabilization at Rainbow Lake Dike

Closes 8/20/2026$200k – $350kInvitation for Bid
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Description

The Township of Parsippany‑Troy Hills is seeking sealed bids for the embankment stabilization of the Rainbow Lake Dike. The work includes clearing trees, excavating the embankment, and installing a series of gabion structures to reinforce the slope and toe. Bidders must submit a $75 fee for bid documents, provide a bid security (either a check or a bond up to 10 % of the bid but not exceeding $20,000), and comply with New Jersey statutes governing public procurement. The project’s exact quantities will be confirmed prior to construction, but estimated quantities are provided to guide pricing. • Scope: Tree removal (≈45 trees), excavation (≈120 CY), gabion mattress installation (≈1,160 SY), gabion training wall (≈190 LF) and toe wall (≈730 LF). • Submission deadline: August 20, 2026, 10:00 a.m. (local time) via in‑person drop‑off, overnight courier, or mail. • Required bid security: Check or bond up to 10 % of the bid, capped at $20,000.

Attached files

Contact

Suzanne Taylor(Director of Purchasing)

(973) 263-4377

Key dates

Opened
7/31/2026
Closes
8/20/2026

Last updated

Details

Type
Invitation for Bid
Industry
Civil Engineering
NAICS
237990

Budget estimate

$200,000 – $350,000

Based on the estimated quantities (120 CY excavation, 1,160 SY gabion mattress, 190 LF training wall, 730 LF toe wall, and 45 trees), a rough unit‑cost model suggests a total contract value in the low‑ to mid‑hundreds of thousands of dollars. Assuming $30/CY for excavation, $60/SY for gabion mattresses, $150/LF for training wall gabions, $120/LF for toe wall gabions, and $500 per tree for removal, the baseline estimate is ≈ $212 k. Adding contractor overhead, contingencies, and profit margins could raise the final contract price to roughly $250 k–$350 k.

AI estimate from the solicitation

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