The permits civil engineers actually own — stormwater (CGP/SWPPP/SWMP), grading and land disturbance, floodplain development, ROW and DOT access, and environmental review. Written for land development in Texas, Florida, and Colorado.
Colorado splits site-civil permitting across state stormwater, state floodplain oversight, a state DOT access permit, and independent local grading rules — and calls its stormwater plan a SWMP, not a SWPPP. Here's the full map.
Florida bundles stormwater, wetlands, and water quality into a single Environmental Resource Permit — but it's rarely the only approval a land-development project needs. Here's the full stack.
There's no single "Texas permit" for land development — there's a stack of state, local, and federal approvals. Here's how they fit together, from TPDES stormwater to platting to Section 404.
A driveway or street connecting to a Colorado state highway needs an access permit under the State Highway Access Code — and depending on the road, you may apply through your local jurisdiction rather than CDOT directly. Here's how to sequence it.
Every Colorado land-disturbance project of an acre or more needs coverage under CDPS COR400000. Here's how the permit works, why it calls for a SWMP instead of a SWPPP, and how to get through CEOS without a resubmittal.
Colorado floodplain development sits on two layers: the federal NFIP floor administered locally, and a state layer run by the Colorado Water Conservation Board. Here's how the two interact, and when CWCB approval is required on top of your local permit.
The FDEP Construction Generic Permit is Florida's NPDES-delegated construction stormwater program — SWPPP, NOI, and NOT — and it is frequently confused with the ERP. Here's exactly how the two differ and when you need both.
Connecting to a Florida state road runs through FDOT's access management program, not your local ROW process. Here's how access classifications, connection categories, and drainage review under Rule Chapter 14-96, F.A.C. actually work.
Florida's ERP bundles stormwater quantity, stormwater quality, and wetlands review into one permit — and it's usually the long pole in a Florida land-development schedule. Here's how FDEP and the five Water Management Districts split jurisdiction.
Texas has no state floodplain permit — every community issues its own under NFIP rules. Here's how the floodway/flood fringe distinction, no-rise certifications, and CLOMR/LOMR actually work on a Texas site.
Texas runs its own delegated construction stormwater program under TCEQ. Here's exactly what TXR150000 requires — thresholds, SWPPP contents, STEERS coverage, and the mistakes that trigger enforcement.
Any driveway connecting to a state highway in Texas needs a TxDOT access permit — separate from, and often slower than, your city's right-of-way process. Here's when it applies and how to sequence it into your site plan.
Austin layers Site Plan review with Watershed Protection, the SOS Ordinance, Critical Water Quality Zones, and the TCEQ Edwards Aquifer Protection Program — making it the most environmentally constrained metro in Texas for land development.
Colorado Springs runs land-development permitting through its own grading & erosion control process and Drainage Criteria Manual, layered with MS4 stormwater obligations. Here's how it works, and how it differs just outside city limits.
Dallas grading and drainage permitting runs on iSWM criteria and often sequences with plat and site plan approval. Here's how to plan the permit path and avoid rework on stormwater design.
Denver layers a city grading permit, its own storm drainage design criteria, and the state's CDPHE COR400000 stormwater permit. Here's how the three approvals fit together — and in what order.
Houston skips zoning but not permitting. Here's how Chapter 42, City of Houston Public Works, and Harris County Flood Control District review a site development project from plat to grading.
Miami-Dade splits site-civil review across RER, DERM, and SFWMD. Here's which agency owns which approval, and how the county's high water table and HVHZ context shape the design.
Erosion and sediment control isn't its own permit — it's a set of BMPs required by both your stormwater CGP and your local grading permit. Here's how the two overlap and where they diverge.
SFHA, BFE, floodway, no-rise, CLOMR, LOMR — the vocabulary of floodplain permitting determines what you can build and how much engineering it takes to prove it's safe. Here's the NFIP framework, term by term.
The 1-acre federal trigger is only the floor. States and localities layer their own thresholds on top — here's how Texas, Florida, and Colorado compare, and how the common-plan-of-development rule catches phased projects.
Any time site work touches the curb, the sidewalk, or the street, you're in someone else's right-of-way. Here's how ROW and encroachment permits work, and who actually issues them.
If a site has a wetland, stream, or drainage feature that could be waters of the U.S., Section 404 and 401 permitting sits on the critical path before you can finalize grading. Here's how the two permits fit together.
SWPPP and SWMP are nearly the same construction stormwater document under different names. Here's what actually changes between them — and which one your state requires.
Grading permits authorize the cut, fill, and land disturbance that happens before a shovel touches vertical construction. Here's what triggers one, what a typical submittal requires, and how it relates to your stormwater permit.
Of all the AI-in-civil-engineering use cases, permitting is the ripest to automate — rules-based, document-heavy, and fragmented across thousands of jurisdictions.
AI permitting uses artificial intelligence to map, prepare, and increasingly file the permits a construction project needs. Here's what an AI permitting agent actually does.
The path from informed to automated permitting — inform, assist, execute — and why a curated nationwide permit database is the foundation for an AI permitting agent.
Realistic permit timelines for residential, commercial, ADU, and civil projects — broken down by jurisdiction type and complexity.
Understand which law applies to your project, document types (IS/MND vs EA/EIS), timelines, and when both apply simultaneously.
Real timelines for NWP vs Individual Permits, USACE review periods, agency coordination, and CPM schedule best practices.
Who needs an NPDES CGP, SWPPP requirements, NOI filing, EPA vs state-administered programs, and compliance deadlines.