Clean Water Act discharge permit · NPDES IDR12G427

IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES, ID: NPDES IDR12G427 discharge permit, effluent exceedances, inspections, penalties

PendingPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES, held by IDAHO TRANSPORTATION DEPARTMENT, holds NPDES permit IDR12G427.

IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES, Idaho: Coverage under a general permit IDR12G427, held by IDAHO TRANSPORTATION DEPARTMENT; Construction stormwater; Pending.

Idaho holds 3,630 Construction stormwater coverages of this permit type in EPA’s file. IDAHO TRANSPORTATION DEPARTMENT holds 9 permits in Idaho.

Other permits held by IDAHO TRANSPORTATION DEPARTMENT

IDAHO TRANSPORTATION DEPARTMENT (ITD) - BELLGROVE-MICA REALIGNMENT OF US HWY 95, Coeur D'Alene: IDR10AA75
IDAHO TRANSPORTATION DEPARTMENT (ITD) - SANDPOINT BYWAY, Sandpoint: IDR10BX99
IDAHO TRANSPORTATION DEPARTMENT, Richfield: IDR10C107
IDAHO TRANSPORTATION DEPARTMENT, Picabo: IDR10C108
IDAHO TRANSPORTATION DEPARTMENT - TWIN FALLS ALTERNATE ROUTE STAGE 2, Filer: IDR10C795
IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11622 SH-75 BIG WOOD RIVER BRIDGE: IDR12A880
IDAHO TRANSPORTATION DEPARTMENT - WEST PEDESTRIAN BRIDGE, Garden City: IDR12FO65
IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES: IDR12G435

IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES among its neighbors

EPA’s permit file holds 3 discharge permits in the Coe Creek-Raft River subwatershed (HUC 170402100902), IDR12G427 among them.

Other permits in the Coe Creek-Raft River subwatershed (HUC 170402100902)

IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES, Unknown: IDR12G435, not classed, discharging to SNAKE RIVER
MIDWAY DAIRY, Declo: IDR10C04E, minor permit, discharging to Raft River, permit term to February 16, 2022

What the register holds for IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES: its NPDES ID, its permit type and status, its its address, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR12G427.

Identity

Facility as filed	IDAHO TRANSPORTATION DEPARTMENT - ITD KEY #11239 I-84 SNAKE RIVER TWIN BRIDGES
Permittee as filed	IDAHO TRANSPORTATION DEPARTMENT
NPDES ID	IDR12G427
Permit status	Pending
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Address	ID
Subwatershed	Coe Creek-Raft River (HUC 170402100902)

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR12G427.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR12G427.

Inspections

EPA’s inspection file holds no inspection for NPDES IDR12G427.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IDR12G427.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IDR12G427.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This page covers Clean Water Act NPDES permit IDR12G427, held by IDAHO TRANSPORTATION DEPARTMENT for the I-84 Snake River Twin Bridges facility in Idaho, under a construction stormwater program with a Pending status and Minor Discharger class. The register lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and records no effluent or single-event violations for this permit, with the subwatershed given as Coe Creek-Raft River (HUC 170402100902).