Earth Support Corp

Price checkSoil NailsPer LF

Soil nail, drilled & grouted

What bidders priced on like-for-like public pay items, from public agency bid tabulations restated to 2026 dollars and a typical job, against ESC’s published rate as a general contractor carries it.

Published rate: ESC’s rate against the median public bid

Solid threadbar in drilled hole

−47%

ESC’s rate as a GC carries it, against the median public bid

Solid threadbar in drilled hole: ESC’s rate as a GC carries it is $132/LF −47% vs the median public bid, and below 80% of 17 public bids on 3 lettings (2018–2023).

  • Limited evidence: 3 lettings
  • Bids all years
  • New England agencies
  • Restated to 2026 dollars
  • Middle half of bids
  • Median bid
  • Typical low bid
  • ESC rate, as a GC carries it (gold rule: our low–high range)
ESC published rate
$120/LF
Range $100–175
As a GC carries it
$132/LF
Published rate +10% · $110–193
Median public bid
$250/LF
Recent lettings count more; each letting once
Middle half of bids
$154–313/LF
25th to 75th percentile
Typical low bid
$143/LF
Median of each pay line’s lowest bid
Pay lines where ESC is under even the lowest bid
1 of 3
ESC’s carried rate below every bid on the line

Price book note: #8-#10 bar in a drilled and grouted hole, plate, nut and washer. Per LF of nail.

This rate in the price book

01 · The field

Every public bid

Each dot is one bidder’s price on one public pay line for this work: 17 bids on 3 lettings, 2018–2023. Every price is restated to 2026 dollars and a typical job size, so it compares like for like with ESC’s published rate. Point at or focus a dot for its year, agency and rank; the other bids on its pay line are ringed.

  • Public bid
  • Older lettings fainter
  • Middle half of bids
  • Median bid
  • Typical low bid
  • ESC as a GC carries it (gold rule: low–high)

n = 17 bids · 3 lettings · 3 pay linesSource: public agency bid tabulations

Show all 17 bids

02 · Time

Over time

  • Public bid
  • Year’s weighted median
  • ESC as a GC carries it

Each dot is one bid, placed by the year its letting opened. Every price is restated to 2026 dollars and a typical job, so a price bid years ago and one bid last season compare like for like. Ink ticks: each year’s weighted median, where the year has at least 3 bids.

n = 17 bids · 3 years with bidsSource: public agency bid tabulations

Show the numbers

03 · Pay lines

Pay line by pay line

Every public pay line behind this rate. No bidder, project, contract or town is shown: a line is a year, an agency, a printed quantity, a count of bidders and prices.

ESC’s carried rate would have been the lowest price on 1 of 3 pay lines.

Every public pay line for Solid threadbar in drilled hole, newest first: year, agency, printed quantity, bidders, and the lowest, median and highest bid restated to 2026 dollars, with where ESC’s rate as a GC carries it would have ranked.
YearAgencyQuantityBiddersLowMedianHighBids on the line against ESCESC would have ranked
2023MaineDOT2,660 LF6$130$259$317#2of 7
2021NHDOT2,350 LF4$195$281$407#1of 5: the lowest price on the line
2018CTDOT4,560 LF7$96.75$126$139#6of 8

Newest first · 3 of 3 pay lines

Low, median and high are restated to 2026 dollars and a typical job; the quantity is as printed. The strip shows each bid on the line (dots), its median (ink tick) and ESC’s rate as a GC carries it (diamond), on one scale for every line. “ESC would have ranked” counts ESC as one more bidder on the line.

04 · Agencies

By agency

The same comparison inside each agency’s own lettings.

Solid threadbar in drilled hole by agency: lettings, bids, median bid, the field of bids against ESC’s rate as a GC carries it, ESC against the median and the weighted share of bids above ESC.
AgencyLettingsBidsMedian bid /LFField and ESCESC vs medianBids above ESC
All agencies317$250−47%80%
Connecticut Department of TransportationCTDOT17Too few lettings to compare
Maine Department of TransportationMaineDOT16Too few lettings to compare
New Hampshire Department of TransportationNHDOT14Too few lettings to compare
  • Middle half of bids
  • Median bid
  • ESC rate, as a GC carries it (gold rule: our low–high range)

An agency is compared on its own from 3 lettings. Every agency’s bids count in the charts and pay lines above.

Where these numbers come from

Basis

Solid threadbar in drilled hole. 17 public bids on 3 lettings and 3 pay lines, from CTDOT, MaineDOT and NHDOT (2018–2023; every year is used, because bids from 2019 on leave fewer than 8 lettings). Every bid is restated to 2026 dollars and to a typical ESC job of 1,200 LF. A letting’s weight halves every 3 years, and each letting counts once, however many bidders it drew.

ESC’s rate is compared as a general contractor carries it: the published typical rate plus 10%, because a public pay line is the general contractor’s price, markup included.

Limited evidence: 3 lettings. A comparison is published from 3 lettings; 8 or more count as strong evidence.

Published by Earth Support Corp. from public agency bid tabulations. These are budget comparisons, not a quote or an offer: ESC quotes its earth-support scope to general contractors as a subcontractor, from your drawings.

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Rev 1 · valid through Dec 13, 2026

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