City Supplementals to the SUDAS Specifications
Below is a list of various city supplementals to the SUDAS Specifications. To provide your city’s supplemental link, please click here (membership required). If you need to update your link, email us.
| City | Supplementals Website |
|---|---|
| Dubuque | https://www.cityofdubuque.org/2817/Resources-for-Contractors-Engineers-Deve |
| Solon | https://www.iowapwsb.org/wp-content/uploads/2016-Solon_SUDAS-Amendments.pdf |
| Hiawatha | https://hiawatha-iowa.com/departments/engineering/ |
| Council Bluffs | https://www.councilbluffs-ia.gov/415/Information-for-Consultants |
| Ankeny | http://www.ankenyiowa.gov/sudas-specifications |
| Cedar Rapids | https://cedar-rapids.org/local_government/departments_g_-_v/public_works/sudas_statewide_urban_design_and_specifications.php |
| Marion | https://www.cityofmarion.org/government/engineering/public-improvement-standards |
| Ames | https://www.cityofames.org/files/assets/city/v/1/public-works/documents/rightofway/2023-coa-sudas-supplemental-specs.pdf |
| Urbandale | https://www.urbandale.org/DocumentCenter/View/12610/Supplemental-Specifications-2022-Urbandale-with-Details |
| Davenport | https://www.davenportiowa.com/cms/One.aspx?portalId=6481456&pageId=14252433 |
| Iowa City | http://www.iowa-city.org/weblink/0/edoc/1845668/CICSupplementalSpecs.pdf |
| Baxter | https://www.baxter-iowa.com/sites/default/files/uploads/city-news/baxter-supplemental-specifications-2023-sudas_final.pdf |
| Sioux City | https://www.sioux-city.org/government/departments-a-f/engineering/sudas-specs |
| Indianola | https://www.indianolaiowa.gov/969/SUDAS |
| Cedar Falls | https://www.cedarfalls.com/1779/Standard-Specifications-2023 |
| Des Moines | https://cms2.revize.com/revize/cityofdesmoines/Documents/Departments/Engineering/Forms%20Documents/Regulations/Supplemental%20Specs%202025%20Edition%20Effective%2002-24-2025.pdf?t=202509261008450&t=202509261008450 |
| Fairfax | https://www.cityoffairfax.org/index.asp?SEC=25E7A128-3B14-487A-89C6-54B87BA78EC8&Type=B_BASIC |
| Waukee | https://www.waukee.org/232/Engineering-Department |
| Grimes | https://www.grimesiowa.gov/278/Engineering-Division |
| Johnston | https://www.cityofjohnston.com/DocumentCenter/View/15234/2025-Johnston-Supplemental-Specifications |