Kinnan Engineering, Inc.

Project: Carson City, Nevada / East West Intertie / FPVC pipes under two wetlands & Hwy 395 / Install a 36" FPVC Casing with 3-4" FPVC ducts on the outside & install a 24" FPVC pipe with spacers water main
General Contractors: Silver State Boring
Product: 1080 ft. bundle of 1- 36" & 3- 4" fusible PVC ducts
Conditions: Mixed soil conditions, Sands, Clay & some hard pan material with gravels deep.

Project: Portland Airport Deicing System Runway HDD

Product: 3800 ft. of 1ea. 24" & 1- 6" fusable C900 PVC pipes (27" & 7" O.D.)

General Contractor: Northwest Underwater Construction / J E Dunn Construction / Port of Portland

Soil conditions: Top 30ft. Clay /Sand / Silts, very wet, soft & unstable. ( This area was cased with 160' of 48" steel on the entrance) From 30' to 80' deep, the majority of the bore was a medium dense silt / ultra fine material.

Project Challanges: Very high water table & soft soils in the top 30' on both ends of the bore. Below 30', for the majority of the bore we encountered a very high pecentage of silts/Ultra fine materials. These materials proved very difficult to remove the solids from, and had to be hauled off and replaced with new drilling fluid to complete the bore.  The bore was designed with a 2000 ft. raduis & 75' of cover & a 2000 ft. radius right hand turn was added to the last 700 ft. to line up with the product line layout area better.

The Digitrak SST magnetic steering system was used because it would have been very difficult to lay out tru tracker wires for the steering grid system. The SST steering system worked well.

Project: Portland Airport Deicing system project.  30" HDPE outfall into the Columbia River

Product: 1100 ft. of SDR 9   30" HDPE pipe

General Contractor: Northwest Underwater Construction

Soil Conditions: Soft Clay & Sand

Project challanges: High Winds at exit barge locations on river / Preventing drilling fluid frac out in soft soil conditions / Minimizing the drilling fluid / cuttings into the Columbia River.

Project: Rainier Effluent Outfall Project / Bore from Rainier Treatment Plant to the Defuser location 150 ft. off shore in 45ft. of water

General Contractor: Stellar J Corporation

Product: 750ft. 24" HDPE PIPE      Conditions: Sand / silty sand

After pulling the pipe & the reamer back to the exit point in the river, the pipe would still not pull back easy. Divers went down to inspect and found the Reamer and first two drill rods wrapped in 1 1/2" cable. The divers cut the cable to free the Reamer & pipe

We think the cable was from on old existing Mill site or an ancor cable from past dredging operations in the area.

On the secound pull back, the divers inspected the pipe and reamer for more cable before it entered the ground.

Project: Install 24" casing for an 18" gas main installation crossing Interstate 80 & the Rail Road Tracks

General Contractor: Silver State Boring / Gardenerville, NV / Rick Landino

Conditions: Surface 20' was gravels with cobble / Cemented hardpan with gravels and cobbles below

Project: Lake Francis, Montana - water intake system

Product: 2800 ft. Bore of 28'' OD HDPE Exiting 1500 ft. off shore, 35 ft. Deep in Lake Bottom

Conditions: 20ft. of surface clay to sand stone out to lake bottom 

Project: Ojia, CA - siphon sewer lines under San Antonio Creek

Product: 1600 ft. of 16'' and 24'' HDPE pipes and structures        Conditions: Top 25ft. of Large Cobble to Clay Stone / Rock

Project: Gas Pipeline project for HC Price Co. near Ninilchick Alaska

Product: 12" Steel Gas Pipeline / 8 HDD River Crossings up to 2000 ft. in length

Conditions: Mixed Soil conditions, Silty Sands, clay, gravels, & coal layers