Wet utility bids hide a lot of work behind a handful of per-foot main runs and a total — and that's exactly why scope gets left out and the unit prices get gamed. Bid Reasoner normalizes every water and sewer sub bid to your scope of work, scores it across six dimensions, and runs four deterministic risk rules over the per-LF main and per-EA fitting prices and mobilization before you award. It's the trade-level version of our subcontractor bid analysis.
Five to nine wet utility subs bid a water main and sanitary package. One total comes in 18% under the field. On a spreadsheet that bidder looks like the obvious pick — until you read the line items and find no pressure and leakage testing, no disinfection, and the tie-ins to existing main assumed into the GC's scope. The number is low because the work is missing, not because the bidder is sharp.
Wet utilities compress most of the cost into per-foot main runs and per-each fittings — so a few dollars per LF, a front-loaded mobilization, or one omitted line moves the award. By eye, across bids in different formats, you catch some of it. The ones you miss become the change order on the disinfection you thought was included, or the dispute over the connection that wasn't priced.
Before you compare totals, confirm every bidder priced the same work. These are the items a complete wet utility bid should carry, and the dimension each maps to.
| Line item | Why it matters | Dimension / flag |
|---|---|---|
| Water main by size / material (per LF) | The primary cost line; unit price per linear foot by diameter and material drives the bid. | Price · peer outlier >2× / <0.5× |
| Valves / hydrants / fittings (EA) | Priced per each; a fitting count far off the field is where unit prices get unbalanced. | Price · unbalanced unit price ≤ $1.00 |
| Sanitary sewer pipe | Gravity main by depth and size; deeper runs change the unit price materially. | Price · scope |
| Manholes | Priced per each by depth; a frequent place where excess depth is understated. | Price · scope |
| Services & laterals | Connections to each property; easy to assume away when the count isn't fixed. | Scope · gap analysis |
| Bedding & backfill | Stone bedding and select backfill vary by spec; often folded into the pipe line. | Scope · price |
| Dewatering | Real cost on a high water table; routinely omitted or understated. | Scope · risk |
| Pressure / leakage testing & disinfection | Spec-required before acceptance; small line, easy to leave out entirely. | Compliance · gap analysis |
| Connections to existing | Tie-ins to live main and sewer; high-risk work that's frequently pushed to the GC. | Scope · gap analysis |
| Pavement restoration | Trench patch and final surface; sometimes split to a separate sub — confirm who carries it. | Scope · compliance |
These are the lines that quietly drop out and make a total look low. Bid Reasoner's two-way scope-coverage gap analysis surfaces each one against your scope of work.
Pressure and leakage testing with disinfection is spec-required before acceptance and easy to leave out. A bidder that didn't quote it isn't cheaper, it's short scope.
Tie-ins to live main and sewer are high-risk work routinely pushed to the GC. Its absence is a scope gap, not a price advantage.
Connections to each property get assumed away when the count isn't fixed. If they aren't priced, that cost lands on you after award.
A real cost on a high water table that's easy to understate or omit. A thin or missing dewatering line is a schedule and scope risk.
Every water and sewer bid runs through the same four deterministic rules, with fixed numeric thresholds. These are the patterns they catch in wet utilities specifically.
Utility crews mobilize heavy equipment fast, so an inflated mobilization line is the classic front-load — cash recovered before a foot of pipe is laid. Flagged when mobilization exceeds 10% of the total.
With most cost in main runs and fittings, a $/LF on main or a $/EA on a fitting priced far off the field — high to chase quantity overruns, low to win — moves the award. Flagged above 2× or below 0.5× the peer median, and at or below $1.00.
A total that lands more than 20% off the field is flagged — and paired with the scope gap, it shows whether the bidder is sharp or simply left testing, disinfection, and connections out.
Upload or forward every water and sewer sub bid for the package. Bid Reasoner reads each PDF, extracts the line items, and normalizes them to your scope of work so the per-LF main runs, fittings, sanitary pipe, manholes, and testing line up item for item — even when each bidder's form looks nothing alike. Every bidder is then scored across price, scope, schedule, compliance, performance, and risk, and the four deterministic rules run over the numbers.
The scope-coverage gap analysis surfaces the testing and disinfection, connections to existing, services and laterals, or dewatering a bidder didn't quote — the difference between a sharp number and a short one. Every score links to a page-cited quote from the source bid, so the answer to "why this sub?" is on the record. Recommend a winner under any of 7 decision modes — from Lowest Responsible Bid to Best Value — with a confidence score, and carry the reasoning, the risk flags, and any forced override straight into the award memo with a full audit trail.
A complete water and sewer utility bid prices mobilization, water main by size and material per linear foot, valves, hydrants and fittings each, sanitary sewer pipe, manholes, services and laterals, bedding and backfill, dewatering, pressure and leakage testing with disinfection, connections to existing, and pavement restoration. The per-LF main runs and the per-EA fittings carry most of the price, so the unit price on each is where the bid is won or lost. Bid Reasoner normalizes each bidder's line items to your scope of work so you can see, item for item, who priced what.
Pressure and leakage testing with disinfection, connections to existing, services and laterals, and dewatering are the items most often missing from a water and sewer bid. They are small relative to the main runs, easy to assume into another line, and a frequent reason one bidder's total comes in low. Bid Reasoner runs a two-way scope-coverage gap analysis on each bidder — items in your scope the bidder didn't quote, and items the bidder priced that weren't in your scope — so the low number that's low because it left work out gets caught before award.
Bid Reasoner runs four deterministic risk rules over every water and sewer bid. It flags unbalanced unit prices at or below $1.00, line items above 2x or below 0.5x the peer median — the per-LF main and per-EA fitting prices where games hide — totals that deviate more than 20% from the field, and mobilization above 10% of the total, the classic front-loaded utility bid. These are fixed numeric thresholds anyone can check, not a black-box score.
Built-in state-DOT pay-item baselines exist for select states — NY and NJ — as a head start on the per-LF and per-EA comparison. Outside those states, Bid Reasoner levels each water and sewer bid against the other bids in your package through peer-median normalization, so no government pay-item data is required to start. Bid Reasoner analyzes the bids you receive; it is not takeoff or quantity-estimating software.
Bring one package's water and sewer sub bids. We'll normalize them to scope, score six dimensions, flag the per-LF and mobilization risk, and recommend a winner on the call.