Division 31 Earthwork
Detail or Installation Mismatch in Division 31 Earthwork submittals
Short answer
The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. Default grade in Division 31 Earthwork: Fix and Resubmit.
The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. This guide covers how it shows up specifically in Division 31 Earthwork submittals.
What to look for in Division 31 Earthwork
- Tieback spacing differs from shoring design drawings (changes tributary load per anchor)
- Soldier pile embedment depth below excavation subgrade differs from design (affects passive resistance)
- Geogrid overlap dimensions at connections and boundaries - spec typically requires minimum 12-24 inches
- Compaction lift thickness differs from spec maximum (typically 8-12 inches per lift for granular, 6-8 inches for cohesive)
- Geotextile overlap at seams - spec typically requires 12-24 inches; stapled seam vs sewn seam requirements
- SWPPP best management practices proposed differ from approved plan (inlet protection type, silt fence placement, stabilization method)
- Drainage composite overlap at joints - most products require minimum 6-inch lap
- Dewatering discharge location differs from approved SWPPP or stormwater permit
How severe is it?
Default grade: Fix and Resubmit. Escalates to Blocker when the difference affects a fire-rated, seismic, or structural assembly.
Deviation Check assigns a default per category and escalates or de-escalates based on the spec, always showing its reasoning. See the Division 31 severity rules.
What the PM should do
Stamp the submittal Revise and Resubmit. Mark the deviation, return the relevant spec passage as a redline, and have the sub correct and re-send before fabrication or installation.
Other deviation categories in Division 31
Frequently asked questions
What tieback and soldier pile installation details in Division 31 Earthwork submittals commonly mismatch the shoring design drawings?
Tieback spacing differences change the tributary load per anchor, and soldier pile embedment depths below excavation subgrade affect passive resistance - both are Blocker-level if they touch structural performance. Geogrid overlap dimensions at connections and boundaries typically require 12 to 24 inches per spec; a submittal showing less is a Fix and Resubmit at minimum.
How does compaction lift thickness become a detail mismatch in Division 31 Earthwork submittals?
Specs typically limit granular fill to 8 to 12 inches per lift and cohesive fill to 6 to 8 inches. A submitted method statement showing thicker lifts means the compaction energy required to reach 95% or 98% of ASTM D1557 cannot be consistently achieved. Geotextile and drainage composite overlap dimensions are also checked here - most geotextile seams require 12 to 24 inches and drainage composite joints require a minimum 6-inch lap.
View this page as Markdown for LLMs and note-taking.