Aeronautics Bike / Pedestrian FAQs Highways Qualified Products List Maps Publications Transportation Performance Scenic Byways Volunteer Activities Idaho.Gov

State Highway 21

MAIN ROUTE: ASCENDING ROAD: JURISDICTION ITD DISTRICT 3: ADA COUNTY
Segment Code	Milepost	Description of Roadway	City Name	Intersecting Segment Code	Intersecting Milepost	Federal Aid Route Number
002140	.000	JCT I-84 EB ON/OFF RAMPS IC# 57	BOISE	001121	.140	29
002140	.082	CTR I-84 UNDERPASS EBL IC# 57	BOISE	001010	56.968	29
002140	.108	CTR I-84 UNDERPASS WBL IC# 57	BOISE	001010	56.933	29
002140	.200	JCT I-84 WB ON/OFF RAMPS IC# 57	BOISE	001124	.000	29
002140	.410	GOWEN RD & FEDERAL WAY RT & LT		002141	.410	29
002141	.410	GOWEN RD & FEDERAL WAY RT & LT		015997	.410	29
002141	.788	E GRAND FOREST DR LT & S TECHNOLOGY WAY RT				29
002141	.968	PEDESTRIAN/BICYCLE UNDERPASS				29
002141	.988	FIRE STATION LT				29
002141	1.225	E ALTARIDGE DR LT				29
002141	2.190	PEDESTRIAN/BICYCLE UNDERPASS		015938	11.949	29
002141	2.220	E GRAND FOREST DRIVE LT				29
002141	2.487	E LAKE FOREST DR LT		002142	12.710	29
002141	2.500	RD TO OREGON TRAIL INFORMATION KIOSK RT				29
002141	3.032	S SURPRISE WAY LT		027609	10.000	29
002141	3.069	AUTOMATIC TRAFFIC COUNTER STA #103				29
002141	3.130	BEG DIVERSION DAM BRIDGE				29
002141	3.410	END DIVERSION DAM BRIDGE				29
002141	3.480	OLD SH-21 LT & ACCESS RD TO GREENBELT RT		002140	8.121	29
002141	3.480	OLD SH-21 LT & ACCESS RD TO GREENBELT RT		002140	8.121	29
002141	3.580	MILEPOST EQUATION 3.58 BK = 8.252 AH		002140	8.252	29
002141	8.252	MILEPOST EQUATION MARKER				29
002141	8.252	>>> LEAVING-URBAN-LIMITS <<				29
002140	8.252	MP EQ MARKER/END NEW ALIGNMNT N OF DIVERSION D		002141	3.580	29
002140	8.405	DIVERSION DAM RT; ENT/EXT HISTORIC SITE #343 L				29
002140	8.454	ENT/EXT HISTORIC SITE #343 LT				29
002140	8.467	BEG DIVIDED HWY				29
002140	9.918	END DIVIDED HWY				29
002140	10.065	ENTRANCE TO DISCOVERY STATE PARK RT				29
002140	10.190	ENTRANCE TO SANDY POINT REC AREA RT				29
002140	10.320	BEG PASSING LANE RT				29
002140	10.620	SANDY POINT LN LT				29
002140	11.195	LUCKY PEAK DAM RD RT				29
002140	11.300	ENT LUCKY PEAK DAM VIEWPOINT RT				29
002140	13.615	HIGHLAND VALLEY RD LT				29
002140	14.450	END PASSING LANE RT				29
002140	14.540	HIGHLAND VALLEY SUMMIT; ELEV 3782' (SIGN) RT				29
002140	14.965	BEG BIT CURB SECTION N & S BD				29
002140	16.415	ENT LUCKY PEAK FOREST NURSERY RT				29
002140	16.425	END PASSING LANE LT				29
002140	16.860	CTR FISH & GAME CHECK STATION LT				29
002140	17.140	HISTORICAL SITES #318 & #376 RT				29
002140	17.160	BEG MORES CR;LUCKY PEAK RES BR				29
002140	17.325	END MORES CR;LUCKY PEAK RES BR				29
002140	17.340	E SPRING SHORES RD (TO ARROWROCK DAM) RT		000435	100.000	29
002140	17.575	>>> END-COUNTY-LIMITS <<<				29

MAIN ROUTE: ASCENDING ROAD: JURISDICTION ITD DISTRICT 3: BOISE COUNTY
Segment Code	Milepost	Description of Roadway	City Name	Intersecting Segment Code	Intersecting Milepost	Federal Aid Route Number
002140	17.575	>>> BEG-COUNTY-LIMITS <<<				29
002140	18.150	BOISE NATIONAL FOREST (SIGN) RT				29
002140	20.180	BEG TURNOUT LT				29
002140	20.190	HISTORICAL SITE #266 LT				29
002140	20.200	END TURNOUT LT				29
002140	20.855	BEG BADGER GULCH BRIDGE				29
002140	20.886	AUTOMATIC TRAFFIC COUNTER STA #53				29
002140	20.992	FS RD #237 RT		013608	100.000	29
002140	21.385	BEG PASSING LANE LT				29
002140	21.910	END PASSING LN LT				29
002140	21.990	ROBIE CR RD LT				29
002140	23.040	BEG TURNOUT RT				29
002140	23.105	END TURNOUT RT				29
002140	23.987	DAGGETT GRADE RD LT		013846	100.000	29
002140	24.340	BEG MORES CREEK BRIDGE				29
002140	24.355	END MORES CREEK BRIDGE				29
002140	24.370	BEG TURNOUT RT				29
002140	24.460	END TURNOUT RT				29
002140	27.250	BEG MORES CREEK BRIDGE				29
002140	28.870	BEG MORES CREEK BRIDGE				29
002140	28.885	GRIMES CR RD LT		000429	100.000	29
002140	28.890	HISTORICAL SITE #188 LT				29
002140	29.665	BEG MORES CREEK BRIDGE				29
002140	30.165	BEG MORES CREEK BRIDGE				29
002140	30.450	BEG MORES CREEK BRIDGE				29
002140	30.670	BEG TURNOUT LT				29
002140	30.700	END TURNOUT LT				29
002140	31.235	THORN CR RD RT		013610	112.857	29
002140	31.255	BEG MORES CREEK BRIDGE				29
002140	32.980	BEG TURNOUT RT				29
002140	33.050	END TURNOUT RT				29
002140	33.085	BEG MORES CREEK BRIDGE				29
002140	33.247	BEG MORES CREEK BRIDGE				29
002140	34.040	BEG SLOW VEHICLE TURNOUT RT				29
002140	34.690	END SLOW VEHICLE TURNOUT RT				29
002140	35.378	BEG MORES CREEK BRIDGE				29
002140	35.570	BEG MORES CREEK BRIDGE				29
002140	35.610	BEG TURNOUT RT				29
002140	35.680	END TURNOUT RT				29
002140	36.612	ENTRANCE TO GRAYBACK CAMPGROUND RT				29
002140	36.940	BEG ELK CREEK BRIDGE				29
002140	37.205	ENTRANCE TO WARM SPRINGS RESORT LT				29
002140	37.700	BAVARIAN RD LT				29
002140	38.428	>>> ENTERING-CITY-LIMITS <<<	IDAHO CITY			29
002140	38.645	HISTORICAL SITE #186 LT	IDAHO CITY			29
002140	38.800	COTTONWOOD ST LT	IDAHO CITY			29
002140	38.872	MONTGOMERY ST LT	IDAHO CITY	003780	.000	29
002140	38.908	MAIN ST LT	IDAHO CITY			29
002140	38.973	>>>> LEAVING-CITY-LIMITS <<<	IDAHO CITY			29
002140	38.990	ENTRANCE TO ITD MAINTENANCE YARD #33000 RT				29
002140	39.022	KING RD LT				29
002140	39.050	EAST HILL RD LT				29
002140	39.970	BANNOCK CR RD RT				29
002140	40.510	BEG TURNOUT RT				29
002140	40.540	END TURNOUT RT				29
002140	41.090	RABBIT CR RD RT				29
002140	45.925	BEG TURNOUT RT				29
002140	45.964	END TURNOUT RT				29
002140	45.965	WINTER CLOSING GATES RT & LT				29
002140	47.700	ENTRANCE TO TEN MILE REST AREA RT				29
002140	48.050	ENTRANCE TO BAD BEAR CAMPGROUND LT				29
002140	48.160	BEG TURNOUT RT				29
002140	48.310	END TURNOUT RT				29
002140	48.915	ENTRANCE TO HAYFORK CAMPGROUND RT				29
002140	51.890	BEG TURNOUT RT				29
002140	51.940	END TURNOUT RT				29
002140	52.330	MORES CR SUMMIT; ELEV 6117' (SIGN) RT				29
002140	56.755	CROOKED RIVER RD RT				29
002140	59.235	ENTRANCE TO PARK 'N SKI AREA LT				29
002140	62.920	BEAVER CR SUMMIT; ELEV 6041' (SIGN) RT				29
002140	69.985	BEG TURNOUT RT				29
002140	70.015	END TURNOUT RT				29
002140	70.060	BEG SCENIC VIEWPOINT RT				29
002140	70.095	END SCENIC VIEWPOINT RT				29
002140	71.350	WINTER CLOSING GATES RT & LT				29
002140	72.163	LOWMAN (SIGN RT; UNINCORPORATED)				29
002140	72.360	BEG S FK PAYETTE RIVER BRIDGE				29
002140	72.405	END S FK PAYETTE RIVER BRIDGE				29
002140	72.485	ENTRANCE TO ITD MAINTENANCE YARD #31900 RT				29
002140	72.610	GARDEN VALLEY RD (STC 3824) LT		003770	25.050	29
002140	72.680	BEAR VALLEY RD LT		003770	25.112	29
002140	72.697	BEG CLEAR CREEK BRIDGE				29
002140	72.725	END CLEAR CREEK BRIDGE				29
002140	72.810	BEG TURNOUT RT				29
002140	72.860	END TURNOUT RT				29
002140	73.080	MILLER MTN RD LT				29
002140	73.225	ENTRANCE TO MTN VIEW CAMPGROUND RT				29
002140	73.600	BOISE NATIONAL FOREST (SIGN) RT				29
002140	74.930	BEG TURNOUT RT				29
002140	75.020	END TURNOUT RT				29
002140	76.945	ENTRANCE TO KIRKHAM HOT SPRINGS CAMPGROUND RT				29
002140	77.480	BEG TURNOUT RT				29
002140	77.550	END TURNOUT RT				29
002140	78.490	BEG TURNOUT RT				29
002140	78.530	END TURNOUT RT				29
002140	78.720	BEG TURNOUT RT				29
002140	78.760	END TURNOUT RT				29
002140	78.785	ARCHIE CREEK RD RT				29
002140	81.440	ENTRANCE TO HELENDE CAMPGROUND RT				29
002140	85.320	BEG EIGHT MILE CREEK BRIDGE				29
002140	85.457	EIGHT MILE CR RD RT				29
002140	85.500	MILEPOST EQUATION				29
002140	87.650	BEG S FK PAYETTE RIVER BRIDGE				29
002140	90.810	BEG CHAPMAN CREEK BRIDGE				29
002140	91.020	BEG S FK PAYETTE RIVER BRIDGE				29
002140	91.495	RD TO WARM SPRINGS CR AIRPORT LT				29
002140	91.570	BEG WARM SPRINGS CREEK BRIDGE				29
002140	93.750	GRANDJEAN RD RT				29
002140	93.835	EMERGENCY TELEPHONE RT				29
002140	93.850	LOWER AVALANCHE GATES RT & LT				29
002140	93.950	AUTOMATIC TRAFFIC COUNTER STA #81				29
002140	94.960	BEG TURNOUT RT				29
002140	95.010	END TURNOUT RT				29
002140	95.395	ENTRANCE TO SCENIC OVERLOOK RT				29
002140	95.440	HISTORICAL SITE #435 RT				29
002140	95.445	ENTRANCE TO SCENIC OVERLOOK RT				29
002140	95.655	BEG TURNOUT RT				29
002140	95.690	END TURNOUT RT				29
002140	95.710	EMERGENCY CACHE LT; EMERGENCY HELIPORT RT				29
002140	96.640	BEG TURNOUT RT				29
002140	96.675	END TURNOUT RT				29
002140	97.460	BEG CANYON CREEK BRIDGE				29
002140	97.520	BEG CANYON CREEK BRIDGE				29
002140	97.700	EMERGENCY CACHE LT				29
002140	98.180	BEG TURNOUT RT				29
002140	98.210	END TURNOUT RT				29
002140	98.660	BEG TURNOUT RT				29
002140	98.710	END TURNOUT RT				29
002140	100.470	BEG TURNOUT RT				29
002140	100.520	END TURNOUT RT				29
002140	100.990	BEG CANYON CREEK BRIDGE				29
002140	101.380	BEG CANYON CREEK				29
002140	103.760	BEG CANYON CREEK				29
002140	105.200	AUTOMATIC TRAFFIC COUNTER STA #86				29
002140	105.268	CULVERT (CMP)				29
002140	105.440	UPPER AVALANCHE GATE RT & LT; EMERGENCY CACHE				29
002140	105.450	BEG TURNOUT RT				29
002140	105.487	END TURNOUT RT				29
002140	105.490	CHALLIS NATIONAL FOREST (SIGN) RT				29
002140	105.495	BANNER CREEK SUMMIT; ELEV 7046' (SIGN) RT				29
002140	105.517	>>> END-COUNTY-LIMITS <<<				29

MAIN ROUTE: ASCENDING ROAD: JURISDICTION ITD DISTRICT 4: CUSTER COUNTY
Segment Code	Milepost	Description of Roadway	City Name	Intersecting Segment Code	Intersecting Milepost	Federal Aid Route Number
002140	105.517	>>> BEG-COUNTY-LIMITS <<<				29
002140	106.320	ENTRANCE TO BENCH CREEK CAMPGROUND LT				29
002140	106.570	BEG TURNOUT LT				29
002140	106.650	END TURNOUT LT				29
002140	106.655	BULL TROUT LAKE RD LT				29
002140	107.060	ENTRANCE TO GRANITE CREEK CAMPGROUND RT				29
002140	107.110	BENCH CREEK				29
002140	107.580	BANNER CREEK				29
002140	107.697	NEWMAN CREEK				29
002140	107.710	BEG BANNER CREEK				29
002140	108.770	BEG BANNER CREEK				29
002140	109.010	ENTRANCE TO BANNER CREEK CAMPGROUND RT				29
002140	109.262	CAPE HORN CREEK				29
002140	109.370	BEAR VALLEY RD LT		002499	126.780	29
002140	109.759	CREEK				29
002140	111.112	CREEK				29
002140	112.505	SEAFOAM RD (TO BRADLEY BOY SCOUT CAMP) LT				29
002140	112.510	BEG TURNOUT LT				29
002140	112.550	END TURNOUT LT				29
002140	112.685	BEG CAPE HORN BRIDGE				29
002140	114.955	ENTRANCE TO THATCHER CREEK CAMPGROUND RT				29
002140	115.520	SWAMP CREEK				29
002140	116.180	BEG TURNOUT LT				29
002140	116.230	END TURNOUT LT				29
002140	116.707	VADER CREEK				29
002140	116.825	ENTRANCE TO VADER CREEK CAMPGROUND LT				29
002140	117.167	FLAT CREEK				29
002140	118.355	SAWTOOTH NATL RECREATION AREA BDRY (SIGN) RT				29
002140	118.900	CULVERT				29
002140	119.000	BEG TRAP CREEK BRIDGE				29
002140	119.145	ENTRANCE TO TRAP CREEK CAMPGROUND RT				29
002140	119.450	BEG TRAP CREKK BRIDGE				29
002140	119.540	CAPE HORN RD LT				29
002140	121.340	ENT TO SHEEP TRL CMPGRND RT; ENT/EXIT VIEWPT L		001347	109.683	29
002140	121.410	BEG TRAP CREEK BRIDGE				29
002140	123.015	ENT TO ELK CREEK CAMPGROUND LT				29
002140	123.060	BEG ELK CREEK BRIDGE				29
002140	123.490	ENTRANCE/EXIT TO VIEWPOINT RT				29
002140	123.885	PARK CREEK				29
002140	124.480	DRY CREEK				29
002140	125.080	CULVERT				29
002140	125.810	BEG STANLEY LAKE CR BRIDGE				29
002140	125.905	STANLEY LAKE RD RT; COW CAMP RD LT		001347	104.318	29
002140	126.600	JOB CREEK				29
002140	127.118	BEG CROOKED CREEK BRIDGE				29
002140	127.760	ENT ITD MAINTENANCE YARD #41100 RT				29
002140	128.350	IRON CR RD (TO CAMPGROUND) RT				29
002140	129.230	IRON CREEK				29
002140	129.748	GOAT CREEK				29
002140	129.950	>>> ENTERING-CITY-LIMITS <<<	STANLEY			29
002140	130.170	MEADOW CREEK	STANLEY			29
002140	130.435	NIECE AVE RT	STANLEY			29
002140	130.505	WALLS ST/AIRPORT RD RT	STANLEY			29
002140	130.869	JCT SH-75 RT & LT	STANLEY	002230	189.378	29

Page Last Modified: 8/30/2011 3:09:38 PM