ASM
Stormwater & Excavation · Anchorage
24/7 · (907) 344-2576Call (907) 344-2576
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Alaska Stormwater
& Maintenance · Anchorage
DISPATCH OPEN · 24/7
EMERGENCY · 24/7(907) 344-2576Ice-jacked culvert · Frost-heave · Catch basin
FROST-LINE WINDOW
Anchorage typical42–60 in
First freeze (avg)Oct 04
Last thaw (avg)May 08
Dispatch radius~32 mi
FIELD CREDENTIALS
  • · Licensed & bonded · State of Alaska
  • · Cold-weather equipment fleet
  • · Frost-rated bedding + backfill
  • · Stormwater drainage specialty
Frost-heaved Anchorage ground with stormwater culvert outlet, mid-winter conditions.
FIELD LOG · 2026 SEASON

Ice-jacked culverts.Frost-heave drives.We dig them out.

Anchorage stormwater & cold-ground excavation. Built for −10°F soil and 52-inch frost lines. When the culvert freezes, the catch basin plugs, or the driveway heaves — we’re the crew on the radio.

Call now · 24/7Book a site visit →
SIGNATURE · ANNUAL FROST-DEPTH CYCLE

Eight months. Sixty inches. One window.

SCROLL ↓
SEP → APR
SEP
0in
AIR · 41°F
Pre-freeze prep
OCT
8in
AIR · 26°F
First-freeze window
NOV
22in
AIR · 13°F
Frost-line forms
DEC
38in
AIR · 8°F
Hard-freeze dispatch
JAN
50in
AIR · 13°F
Deep freeze
FEB
58in
AIR · 18°F
Heave season
MAR
52in
AIR · 27°F
Pre-thaw inspection
APR
28in
AIR · 36°F
Snowmelt surge
ACTIVE WINDOW
September
Pre-freeze prep

Culvert clearing + catch-basin flush before first freeze. Last call for shallow excavation.

Dispatch
02 · SERVICE LINES

Six lines. Cold-rated. Built for −10°F.

Every line below is a service we run in sub-zero soil — not summer-only trench work re-priced for winter. Each lane has its own equipment, its own crew lead, and a frost-depth-aware spec sheet.

  1. SVC · 0124/7 dispatch

    Storm-drain & catch-basin thaw

    Plugged grate, frozen sump, ice plug in the outfall pipe. We steam-thaw, vac-truck the slurry, and verify flow before we leave.

    • Steam + induction thaw
    • Vac-truck slurry removal
    • Outfall flow verified
  2. SVC · 0224/7 dispatch

    Frost-heaved driveway repair

    Ground frost lifts your driveway 2-4 inches over a winter. We document the heave, rip out the cracked slab, and re-bed on frost-rated aggregate.

    • Pre-tear documentation
    • Frost-rated bedding
    • Re-pour or asphalt
  3. SVC · 0324/7 dispatch

    Culvert installation & ice-jacking

    Driveway culvert ice-jacked upward and cracked the apron? We pull, re-grade to the inverts, re-install with insulation sleeve.

    • 48-in culvert spec
    • Insulation sleeve install
    • Apron tie-in
  4. SVC · 0424/7 dispatch

    Cold-rated foundation excavation

    Footings in Anchorage need to clear 42-60 inches of frost. We dig to spec, dewater if needed, and tarp/heat the void overnight.

    • Frost-line clearance
    • Trench dewatering
    • Heated overnight cover
  5. SVC · 0524/7 dispatch

    Snowmelt drainage & re-grading

    Spring melt is the real flood. We regrade away from the foundation, armor outlets, and ditch-line where the city stops.

    • Positive grade re-shape
    • Outlet armoring
    • Roadside ditch tie-in
  6. SVC · 0624/7 dispatch

    Cold-soil trench & buried pipe

    Water service, sewer lateral, electrical. Cold-soil bedding, insulated chase, frost-protected backfill spec - not summer-grade trench work.

    • Insulated pipe chase
    • Frost-protected backfill
    • Compaction to spec
03 · FIELD LOG

Eight recent jobs. Winter dispatch.

2025-10 → 2026-01
Dispatch radius · 32 mi
  1. Excavator working over a frost-heaved roadway with a culvert pull underway.
    FL-241
    South Anchorage2026-01-18

    48-in culvert · ice-jacked apron

    Driveway culvert lifted 3.5 in over winter, cracking the asphalt apron and choking the inlet. We pulled the run, re-graded to the inverts, sleeved with R-13 insulation.

    SPEC · 48 in HDPE · R-13 sleeve
  2. Drainage trench at an active construction site with stormwater piping.
    FL-238
    Eagle River2026-01-09

    Catch basin · steam-thaw + vac

    Storm grate frozen solid after a slush event. Steam-thawed, vac-trucked 240 gal of grit slurry, verified outfall flow before close-out.

    SPEC · 240 gal slurry · 22 min thaw
  3. Tracked excavator on prepared ground at residential construction site.
    FL-232
    Sand Lake2025-12-22

    Frost-heave drive · rip & re-bed

    Heave lifted slab 2.5 in over two winters. Documented elevations, ripped to subgrade, re-bedded on 6-in frost-rated aggregate, set for spring re-pour.

    SPEC · 6 in aggregate · spring re-pour
  4. Foundation excavation site in winter conditions with cold-soil exposure.
    FL-225
    Mountain View2025-12-04

    Foundation footing · -8°F soil

    New build footings dug to 52 in. Tarped and propane-heated trench overnight to prevent frost-set before pour. No re-work on inspection.

    SPEC · 52 in depth · overnight heat
  5. Open utility trench with crew prepping for backfill on a cold day.
    FL-218
    Hillside2025-11-21

    Lateral trench · insulated chase

    Sewer lateral re-routed away from a settling slab. R-10 board chase plus frost-protected backfill spec to prevent winter creep.

    SPEC · R-10 board · 60 in cover
  6. Ditch line and outfall area being prepared with stone armor.
    FL-211
    Spenard2025-11-08

    Outfall armor · pre-freeze cleanup

    Outfall scoured by fall rain, sediment plug forming. Rip-rap re-armored, ditch line re-cut, frost-line walk-down before winter.

    SPEC · Rip-rap · class II · 18 in
  7. Urban excavation near a stormwater catch basin in late autumn light.
    FL-204
    Downtown2025-10-27

    Catch-basin retrofit · sediment trap

    Downtown grate flooding twice a year. Retrofitted with deeper sediment trap and frost-rated lid before first freeze.

    SPEC · 36 in trap · 4-bolt frost lid
  8. Heavy equipment grading a commercial lot in pre-freeze conditions.
    FL-198
    Chugiak2025-10-12

    Pre-freeze grading · stormwater lot

    Commercial lot re-graded for positive flow to two catch basins. Last grading window before frost set the soil hard.

    SPEC · 1.5% min grade · dual basin
04 · FIRST REVIEWS

New on Google. Honest about it.

0 GOOGLE REVIEWS
FIELD LOG > STAR COUNT
FIRST-REVIEWER OFFER

Be reviewer #1.
$75 off any service.

We won’t fabricate testimonials to fill a webpage. We’d rather earn one. Hire us, then leave an honest Google review — we’ll knock $75 off your next service line for the next twelve months.

Book a site visit · (907) 344-2576
Verified Google review · $75 credit · One per household
FIELD REPORTS · OPERATOR NOTES
South Anchorage
2026-01-18
Response: 41 min

Ice-jacked driveway culvert. Steam-thaw + vac, then full pull and re-bed before close-out.

Eagle River
2026-01-09
On-site: 2h 12m

Catch basin frozen after slush event. 240 gal slurry vacuumed; outfall flow verified before sign-off.

Hillside
2025-12-22
Footing depth: 52 in

Sub-zero footing dig with overnight heated cover. Clean inspection, no re-work charge.

05 · CREDENTIALS

The credentials that actually matter at −10°F.

06 · SERVICE AREA

Eight zones. Frost-depth-tagged.

61.218° N · 149.900° W
BASE · ANCHORAGE
  1. 01
    Downtown · Anchorage core
    Catch-basin density highest in the city; vac-truck on standing rotation Dec-Mar.
    <= 25 minFROST · 48-54 in
  2. 02
    South Anchorage / Sand Lake
    Driveway-culvert ice-jacking is the dominant winter call here.
    <= 30 minFROST · 50-58 in
  3. 03
    Spenard / Midtown
    Older storm-drain runs - pre-freeze inspection saves a January dispatch.
    <= 25 minFROST · 48-55 in
  4. 04
    Mountain View / NE
    Footing depth jobs trend 52 in; we keep heated covers on hand.
    <= 35 minFROST · 50-58 in
  5. 05
    Hillside
    Deepest frost in the radius. Foundation work runs late season here.
    <= 45 minFROST · 54-60 in
  6. 06
    Eagle River
    Outfall-armoring + ditch line spring-melt work concentrates here.
    <= 50 minFROST · 52-60 in
  7. 07
    Chugiak / Birchwood
    Emergency dispatch only Nov-Mar; scheduled work April-Oct.
    <= 60 minFROST · 54-60 in
  8. 08
    Girdwood (call ahead)
    Snowfall + grade makes this a planned-job zone, not same-day.
    On requestFROST · 54-60 in
DISPATCH RADIUS · 32 MI
BASEDTS.ANCSPNDMVHLSDEGLRCHGKGRDW32 MI · OUTER22 MI14 MI
Core dispatch · Anchorage municipality
Outer zones · call-ahead scheduling
07 · INTAKE

File a dispatch.
We’re on the radio.

EMERGENCY · CALL FIRST
(907) 344-2576
FIELD-INTAKE FORM · F-01

For active emergencies, please call instead — form callbacks are quick but not instant.

Excavation site in winter conditions, Anchorage operations.
BASE
Alaska Stormwater & Maintenance
1200 E 76th Ave · Suite 1210
Anchorage, AK 99518
(907) 344-2576