CHINOHILLS

OPEN SPACE

WESTERNHILLSPARK

OV

C Lia on ny son

SC oa qn uC S y eo o la nn ny o

T W o m

o e n

T w s e ·|}142

r tl- e1 rLT ir ll- a5 c LilacTrl-4

Lil- T a3 rl c LT ir ll a- c2

Lilac Trl Orange County -1 Transportation Authority Mitigation

norb na oC ny S

aC

ycaTrl m- o1 reOLINDA -2RANCH PARK Trl n aph North a 2 elegr

Ridge m T -7 TrlRidge h -rt l li r yonCanon G TTr -7 NorbCa ek lCre

nyonCa North Ridge Trl-1 GilCARBON m han p T arl- r3 g nCANYON yTele ona 8REGIONAL C -TrlPARK uth eTeleg o gra S 3p 1h idCa Rn l-yon Telegraph

C

Ca rnyon Trl-11 T a Lr Tn il t-t y tle o e

Telegraph y 1

1s enyon

- n

a lCa r rE t TS l-152 ge TrTrl-1 th Rid

SouSouth Ridge Trl-16

SANANTONIO

PARK

·|}90

RIO DELORO PARK

HBUARRLTEOSNS FAIRMONT

TelegraphCanyonTrl-13

8 12000

800 0

10

100 1 020 0

00 1 0 0

00 0 001 0 02 120 11200

0000 100 1

1 8 20 00 0

800

0001

0021 1400

800

1400

14

0 0

401 0

6001 1600

0 00 06 21 1

0041

0201

004 1400

800

0021800

106 00 0 4000 1

0012004

1000

10000012

806 000

800 800

DC-2, West Tower Trl-1.Issue: Some improvements made by easement holder, including drainage outlets and asphalt, areunsustainable.Recommendation: Work with easement holder to identify appropriate re-engineering / re-construction necessary for sustainability.

DC-1, Lilac Trl-2,3,4,5.Issue: Damaged Asphalt. Recommendation: Following consultation with easement holder, repair road surface and replace withsuitable road base to maintain vehicleaccess. DC-3, North Ridge Trl-1.

Issue: Trail closed due to landslide / slope failure.Road not necessary because vehicle access can bemaintained via the Telegraph Canyon Trl.Recommendation: Install a foot bridge overlandslide, and convert the road segment to a trail.

DC-4, Telegraph Canyon Trl, Corridor.Issue: Trail parallels Telegraph Creek and is frequentlyinundated and washed out in places. This trail is a controlled access road that crosses Telegraph Creek inmultiple locations. Crossing the creek in a vehicle isoften difficult and causes streambank erosion.Recommendation: Minor re-routes and re-engineer where needed and feasible to improvesustainability and maintain vehicle access.

Plan Recommendations

CALIF STATEPARKS

INLANDDISTRICT &FACILITIES

MANAGEMENTDIVISION

o1:30,688

Miles0 0.1 0.2 0.3 0.4 0.5

·|}142

·|}71Discovery BaneCenter / Canyon /

Telegraph Rolling M Canyon Ranch

r·|}90 Santa Anaa Rive An River /

nta ·|}91Sa Coal Canyon

·|}241

Segment-Level Maintenance Recommendations

Map Page Location

Scale

1 inch = 2,557 feet

Reroute / Remove old alignmentRoad to Trail ConversionReconstruct / Re-engineerMonitor

DISCOVERY CENTER / TELEGRAPH CANYON AREA

Maintain

Chino Hills State ParkMuseum/Visitor centerOther Public LandsIntermittent StreamPerennial Stream / River

HighwayLocal RoadsOther Agency TrailUnknown

NOTES:Parcel boundaries are approximate and should not be consideredlegal descriptions. Maps are intended for study purposes only.

Sources: Calif. Dept. of Parks & Recreation,Other Public Lands: GreenInfo, Inc.

Date: 5/24/2019

Chino Hills State ParkRoad and Trail Management Plan