THE DIRTBID REGIONAL MODEL · MISSOURI
Sitework in Missouri on the same Richmond Metro = 1.00 scale as the rest of DirtBid: 9 cost regions and 115 counties, each with a soil-risk rating from USDA and USGS data. St. Louis Metro runs highest at 0.93×; Joplin Metro lowest at 0.80×.
Missouri multipliers and county ratings are planning-level: built from federal price and soil data, and not yet checked against local bids or a local estimator.
Dominant ground: Harvester, Menfro, Useful
7 counties in this region. 3 of 7 rate high for water table. 2 of 7 rate high for dewatering. USGS maps karst-prone rock across much of 5 of the 7. Highest risk score: Warren County (6 of 10).
Counties: Franklin County, Jefferson County, Lincoln County, St. Charles County, St. Louis County, Warren County, St. Louis City
Dominant ground: Armstrong, Clarksville, Goss
80 counties in this region. 38 of 80 rate high for water table. 38 of 80 rate high for dewatering. USGS maps karst-prone rock across much of 39 of the 80. Highest risk score: Audrain County (6 of 10).
Counties: Adair County, Atchison County, Audrain County, Barry County, Barton County, Benton County, Butler County, Camden County, Carroll County, Carter County, Cedar County, Chariton County, Clark County, Crawford County, Dade County, Daviess County, Dent County, Douglas County, Dunklin County, Gasconade County, Gentry County, Grundy County, Harrison County, Henry County, Hickory County, Holt County, Howell County, Iron County, Johnson County, Knox County, Laclede County, Lawrence County, Lewis County, Linn County, Livingston County, McDonald County, Macon County, Madison County, Maries County, Marion County, Mercer County, Miller County, Mississippi County, Monroe County, Montgomery County, Morgan County, New Madrid County, Nodaway County, Oregon County, Ozark County, Pemiscot County, Perry County, Pettis County, Phelps County, Pike County, Pulaski County, Putnam County, Ralls County, Randolph County, Reynolds County, Ripley County, St. Clair County, Ste. Genevieve County, St. Francois County, Saline County, Schuyler County, Scotland County, Scott County, Shannon County, Shelby County, Stoddard County, Stone County, Sullivan County, Taney County, Texas County, Vernon County, Washington County, Wayne County, Worth County, Wright County
Dominant ground: Lagonda, Snead, Knox
9 counties in this region. 6 of 9 rate high for water table. 6 of 9 rate high for dewatering. USGS maps karst-prone rock across much of 3 of the 9. Highest risk score: Bates County (6 of 10).
Counties: Bates County, Caldwell County, Cass County, Clay County, Clinton County, Jackson County, Lafayette County, Platte County, Ray County
Dominant ground: Ocie, Goss, Viraton
5 counties in this region. USGS maps karst-prone rock across much of 5 of the 5. Highest risk score: Christian County (5 of 10).
Counties: Christian County, Dallas County, Greene County, Polk County, Webster County
Dominant ground: Menfro, Keswick, Mexico
3 counties in this region. 2 of 3 rate high for water table. 2 of 3 rate high for dewatering. USGS maps karst-prone rock across much of 1 of the 3. Highest risk score: Boone County (5 of 10).
Counties: Boone County, Cooper County, Howard County
Dominant ground: Maplegrove, Eldorado, Rueter
2 counties in this region. 1 of 2 rate high for water table. 1 of 2 rate high for dewatering. USGS maps karst-prone rock across much of 2 of the 2. Highest risk score: Jasper County (5 of 10). This multiplier sits outside the range the model was tested on, so treat it as rougher.
Counties: Jasper County, Newton County
Dominant ground: Wrengart, Gatewood, Keswick
4 counties in this region. 3 of 4 rate high for water table. 2 of 4 rate high for dewatering. USGS maps karst-prone rock across much of 3 of the 4. Highest risk score: Cole County (6 of 10).
Counties: Callaway County, Cole County, Moniteau County, Osage County
Dominant ground: Lamoni, Knox, Marshall
3 counties in this region. 3 of 3 rate high for water table. 2 of 3 rate high for dewatering. Highest risk score: Andrew County (5 of 10). This multiplier sits outside the range the model was tested on, so treat it as rougher.
Counties: Andrew County, Buchanan County, DeKalb County
Dominant ground: Wrengart, Alred, Clarksville
2 counties in this region. USGS maps karst-prone rock across much of 2 of the 2. Highest risk score: Bollinger County (5 of 10). This multiplier sits outside the range the model was tested on, so treat it as rougher.
Counties: Bollinger County, Cape Girardeau County
FAQ
From USDA soil survey data, the most common across the state: water table (56 of 115 counties rate high), dewatering (53 of 115 counties rate high), shrink-swell clay (35 of 115 counties rate high). A parcel can differ from its county, so read the survey for your exact site.
From the Commerce Department's Regional Price Parities, on the same Richmond Metro = 1.00 scale as Virginia. Across 29 reviewed regions that method missed by about 0.03 on average. They have not been checked against executed bids in Missouri, so use them for planning, not a final bid.
They are screening ratings from federal soil and geology data, not a local estimator's review and not a geotechnical report. Tested against 511 reviewed counties, they land within one level most of the time, and exact matches are less common. Get borings before you price a real site.
Soil Report
A $350 DirtBid AI Soil Report reads the official USDA survey for your exact parcel, flags the hazards above, and prices the risk — before you buy land or sign a contract.