Price checkRock Anchors & DowelsPer LF
Rock anchor, drilled, grouted, threadbar
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.
- 1 published rate
- Price book rev 1 · valid through Dec 13, 2026
- How the comparison works
Threadbar anchor
+5%
ESC’s rate as a GC carries it, against the median public bid
Threadbar anchor: ESC’s rate as a GC carries it is $220/LF — +5% vs the median public bid, and below 46% of 38 public bids on 11 lettings (2012–2022).
- Strong evidence: 11 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
- $200/LF
- Range $145–290
- As a GC carries it
- $220/LF
- Published rate +10% · $160–319
- Median public bid
- $209/LF
- Recent lettings count more; each letting once
- Middle half of bids
- $200–323/LF
- 25th to 75th percentile
- Typical low bid
- $206/LF
- Median of each pay line’s lowest bid
- Pay lines where ESC is under even the lowest bid
- 1 of 11
- ESC’s carried rate below every bid on the line
Price book note: 1-3/8 in Gr150 bar typical, cased through overburden, DTH in rock, grouted. Per LF of anchor; testing by item.
This rate in the price book01 · The field
Every public bid
Each dot is one bidder’s price on one public pay line for this work: 38 bids on 11 lettings, 2012–2022. 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 = 38 bids · 11 lettings · 11 pay linesSource: public agency bid tabulations
Show all 38 bidsHide the numbers
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 = 38 bids · 7 years with bidsSource: public agency bid tabulations
Show the numbersHide 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 11 pay lines.
| Year | Agency | Quantity | Bidders | Low | Median | High | Bids on the line against ESC | ESC would have ranked |
|---|---|---|---|---|---|---|---|---|
| 2022 | NHDOT | 360 LF | 2 | $209 | $388 | $568 | #2of 3 | |
| 2022 | NHDOT | 350 LF | 3 | $208 | $227 | $378 | #2of 4 | |
| 2019 | NHDOT | 420 LF | 2 | $199 | $199 | $199 | #3of 3 | |
| 2017 | NHDOT | 180 LF | 4 | $202 | $211 | $292 | #4of 5 | |
| 2016 | NHDOT | 1,440 LF | 4 | $107 | $315 | $335 | #2of 5 | |
| 2016 | NHDOT | 800 LF | 5 | $190 | $200 | $324 | #5of 6 | |
| 2016 | NHDOT | 300 LF | 3 | $110 | $138 | $315 | #3of 4 | |
| 2015 | NHDOT | 750 LF | 4 | $91.73 | $304 | $349 | #2of 5 | |
| 2013 | NHDOT | 400 LF | 4 | $6.31 | $107 | $252 | #4of 5 | |
| 2012 | NHDOT | 1,600 LF | 5 | $268 | $279 | $298 | #1of 6: the lowest price on the line | |
| 2012 | NHDOT | 400 LF | 2 | $205 | $307 | $410 | #2of 3 |
Newest first · 11 of 11 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.
| Agency | Lettings | Bids | Median bid /LF | Field and ESC | ESC vs median | Bids above ESC |
|---|---|---|---|---|---|---|
| All agencies | 11 | 38 | $209 | +5% | 46% | |
| New Hampshire Department of TransportationNHDOT | 11 | 38 | $209 | +5% | 46% |
- Middle half of bids
- Median bid
- ESC rate, as a GC carries it (gold rule: our low–high range)
Where these numbers come from
Basis
Threadbar anchor. 38 public bids on 11 lettings and 11 pay lines, from NHDOT (2012–2022; 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 355 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.
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.
Send drawings. Get a firm, line-item quote within 3 business days.
Rev 1 · valid through Dec 13, 2026
Or email plans and your bid date to bids@earthsupportcorp.com.