Underground Utilities
We install water mains, sanitary sewer, storm sewer and power and communications conduit for subdivisions and commercial sites. Each run goes from open trench to compacted backfill, ready for the inspector.
Learn More
Site work in Monmouth usually comes down to water. The federal soil survey maps about half the land inside city limits as poorly or somewhat poorly drained. Three forks of Ash Creek also run through town. On a building pad or in a utility trench, that water shapes the schedule and the drainage plan.
Monmouth is part of our service area, a short drive from our yard in Dallas, OR. Here, Turner Excavation serves builders, developers, business owners, farms and nurseries on projects that run weeks or months. As an excavation contractor, we put in underground utilities and build the pads for new homes and commercial buildings. Call or text (503) 507-2919 for a free estimate.
Tell us about the project and where the site is. We look at the job and put a free estimate in writing.
Monmouth grew from 9,534 people at the 2010 census to 11,110 in 2020. The Census Bureau's 2025 estimate puts the town near 11,500, on about 2.2 square miles of land. Close to 4 in 10 homes here were built in 2000 or later. About 3 in 10 went up in the 1960s and 1970s.
Western Oregon University's campus sits just north of Main Street. More than half of the occupied homes in town are rented. About a quarter of all homes are in buildings with five or more units. So Monmouth projects include single-family lots as well as apartment and business sites.
On raw land, our subdivision and lot development work takes a parcel to finished lots with streets and utilities in. On an apartment or business site, our commercial site work covers the building pad and the parking lot base. Curbs and asphalt come from our paving and concrete subcontractors, under our management.
Woodburn silt loam is the most common soil in town, and it drains moderately well. Dayton silt loam covers close to a fifth of the city, and water moves through it very slowly. In a typical Dayton profile, silty clay starts about 15 inches down. Winter water perches on top of that clay from November to April.
Rain keeps the same calendar. NOAA's 30-year normals for a Monmouth weather station show about 42 inches a year. About 9 of every 10 inches fall from October through May. The soil survey rates about three quarters of the town as slow to soak up that rain.
FEMA's flood maps put about one eighth of the land in city limits in the 100-year floodplain. Most of it lies along Ash Creek and its forks. That is why we lay out storm drainage and French drains with the grading plan. Heavy grading and earthwork fits the dry season, when the clay can be worked and compacted.
Inside city limits, the City of Monmouth Building Department issues building permits. It runs a full-service program, with structural, electrical, mechanical and plumbing permits. New streets and public utility lines follow the Monmouth Public Works Design Standards. Engineered plans for that work go to the city's Public Works department for review.
Land outside city limits falls under Polk County Community Development. Oregon DEQ's 1200-C stormwater permit applies when construction disturbs one acre or more. It also covers smaller lots inside a larger common plan of development. We point you to the right office at each step.
Utility coordination is local too. Monmouth Power and Light is the city's own electric utility. MINET, the fiber network, belongs to Monmouth and Independence. We coordinate conduit runs and vault locations with both before any digging starts.
Communities and areas we serve around Monmouth: Western Oregon University area, Main Street, Monmouth Avenue, Pacific Avenue (OR 99W), Monmouth Independence Highway (OR 51), Ash Creek, Hoffman Road, Talmadge Road, Gentle Avenue, Stadium Drive, Ecols Street, Independence.
Monmouth ZIP codes served: 97361.
Monmouth is part of our service area. We look at the job first, then put a free estimate in writing.
(503) 507-2919 We install water mains, sanitary sewer, storm sewer and power and communications conduit for subdivisions and commercial sites. Each run goes from open trench to compacted backfill, ready for the inspector.
Learn More
We turn raw land into finished, buildable lots for builders and developers. Every underground utility goes in before the streets, and each lot is left graded for its builder.
Learn More
We clear and grade commercial sites, build the pad and run the utilities to the building. We bring the parking lot to base rock, and our paving and concrete subcontractors finish it.
Learn More
Excavator land clearing for building sites and development parcels, with the stumps and roots pulled out. We strip and stockpile the topsoil, then rough grade the ground for the next stage.
Learn More
Mass grading and cut and fill for subdivisions, commercial sites, farms and nurseries. We move the soil to the grades on the plan and compact the fill in layers.
Learn More
Trenching for water lines, power conduit and drain lines across acreage and commercial sites. Every run starts with an Oregon 811 locate request and ends in compacted backfill.
Learn More
French drains, curtain drains, catch basins and culverts for building sites, subdivisions, farms and nurseries. We build each system on a steady fall to an outlet, to the engineer's plan where there is one.
Learn More
We build subdivision streets and private roads from the subgrade up, with the utilities under them laid first. Our concrete and paving subcontractors pour the curbs and lay the asphalt, under our management.
Learn More
Long gravel driveways, farm and nursery access roads, equipment yards and construction entrances for builders and landowners. We grade the road and set the culverts, then build up the base rock to carry trucks.
Learn More
We handle foundation excavation and build compacted building pads for homes on acreage, shops, barns and commercial buildings. Footings are cut to the engineer's plan, and every pad is graded to drain.
Learn More
Directional drilling carries water services and power and communications conduit under roads, paved drives, parking lots and creeks. The pipe pulls back through the bore, and the surface above it stays in place.
Learn More
We take down old structures and break out the concrete and asphalt under them. Our dump trucks haul the debris off, and we grade the site for the next build.
Learn MoreA few of the questions we hear most around Monmouth. If yours is not here, call or text and ask.
Tell us where the land is and what the project needs, and send the plans if you have them. Call or text (503) 507-2919 or use the form, and we will set a time to look at the job.
Tell us about the project and where the site is. We look at the job and put a free estimate in writing.