AI Estimating for Civil & Site Work Contractors

Excavation, grading, paving, utilities, drainage, earthwork. BidEngine's civil engine reads your site sheets and the geotechnical report, then prices the earthwork, paving, and utility connection as one package.

5 MIN
Per Bid
Class V
Subgrade Aware
98%
CY Accuracy
24/7
Available

Built for Division 31–33 Civil & Site Work

The quantities your estimator looks for first — counted, sized, and priced from the plan set.

CY Excavation & Fill

Cut and fill volumes from the grading plan and existing topo.

SF Paving

Asphalt and concrete paving by section thickness and base type.

LF Utilities

Sanitary, storm, water, and gas service footage with depths.

# Catch Basins & Manholes

Storm and sanitary structures by depth and type.

LF Curb & Striping

Curb & gutter, parking striping, ADA stalls, signage.

Erosion Control

Silt fence, inlet protection, construction entrance, hydroseed.

What the Bid Looks Like

A realistic line-item snapshot of a Division 31–33 package generated by BidEngine. Real units, real rates, ready to send.

Professional Bid Proposal
Sample — Division 31–33 Civil & Site Work Package
Generated 4:32 · Vendor pricing verified
Div
Description
Qty
Rate
Extended
31–33
Mass ExcavationCut to fill, hauled within 1 mile
8,400 CY
$11.50
$96,600
31–33
Asphalt Paving 3+23" base + 2" topcoat over 8" CABC
28,000 SF
$3.00
$84,000
31–33
Concrete Curb & GutterB-style 18", 4,000 PSI
2,400 LF
$28.00
$67,200
31–33
8" Sanitary ServicePVC SDR-26, w/ trench, bedding, backfill
640 LF
$98.00
$62,720
31–33
Catch Basins 4ftPrecast w/ frame & grate, 6ft avg depth
8 EA
$3,800
$30,400
Grand Total
$340,920

The Bid Mistakes BidEngine Doesn’t Make

Site work bids drown in the geotech — Class V base, soft subgrade, dewatering, rock excavation, the import fill nobody wants to bid because it's a margin killer. BidEngine reads the geotechnical report and the soils notes alongside the grading plan, flags rock and unsuitable conditions, and prices import/export so you stop showing up to a job where the site engineer 'forgot' to mention 30,000 yards of unsuitable.

Every CSI Division. One Platform.

If you self-perform multiple trades, every division below uses the same upload, the same dashboard, and the same proposal format.

Bid Your Next Site Work Project in Minutes

Upload your plan set. BidEngine writes the bid. Send it to the GC the same day.

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