Lowermost Pajaro left-bank bench vegetation just downstream from Thurwatcher Bridge

Corralitos Creek above Salsipuedes ~ 1910?

Salsipuedes & Corralitos Junction

Murphy’s Crossing: view downriver

View upstream – “big bend” just west of AromasImportant flood storage area

Probably near Aromas ~1915 view upstream

View downstream at Aromas - quarry product spills from railroad r-o-w?

View Downstream over Chittenden - Soda Lake Meander Scars

Future site of Graniterock Wilson Quarry (left) - view downstream

Railroad Bridge at Chittenden with 1906 faulting repairsUSGS photo

Upper Pajaro River joining lower San Benito River - view east

Upper Pajaro River (right) joining San Benito River (foreground)View west (downstream)

July 1952

Lower San Benito - pre-mining June, 1939

Hillsdale sand and gravel. View upriver

Bench height 142; river bed 132; berm height 157-170December 2000

View upstream Hillsdale quarry. February, 2004

View downstream Hillsdale Quarry

Crossing berm was 13+ ft high in December, 2000

Haul Road berm ~4-10 feet high - view south to San Juan Bautista

Channel isolated in old spoils disposal and mining area

Overview Dec 2000 (A = Abandoned flood plain segments) Hillsdale Quarry site - San Benito River

Gravel skimming and stream-bed mining - view south

Past stream-bed mining site, and present mountain-top removal site for Hillsdale plant.View northwest. Banks 10ft and stable.

View southwest (downstream) moving up into bank cutting areas

Lower Lucy Brown Lane reach. Bed of river here mined about 10-15 ft below grade. Left bank erodes in floods (~15 ft high)

Lucy Brown lower reach view of right bank 15-40 ft high�

Lower Lucy Brown reach - left bank active bank cutting 20 ft high

Bank cutting and slumping just downstream from Lucy Brown Ln - View downstream

Bank cutting and slumping just downstream from Lucy Brown

Slump along right bank - lower Lucy Brown stream bed mining reach

Upper Lucy Brown Ln reach - operator shut down in 2002View southwest of left bank 25 ft high

Narrowest point on lower San Benito River - excavated channel

Low berms do not protect closed plant site

Sod Farm site - view west.Floodplains being abandoned but carried floodwater in 1995 and 1998

Small berm “protects” sod farm from 1-10 yr events - view west

Mitchell Road 1 km wide reach - flow to left

View upstream (south).Hwy 156 bypass; and Hwy 156 commercial (background) with two sewage pond sites in historic floodplain.

New Highway 156 bridge near Mitchell Road reach and lower pond complex protectedby berms in floodplain. View north.

USGS gauging site (rt bank) along old Hwy 156, Hollister

Upper Hollister sewage ponds stable channel

Same site of destroyed bridge

Same site in summer when a temporary crossing is builtView upstream

Heavy vehicle use in channel - view downstream to Hollister

Union Rd. bridge, view north downstream. Cienega Rd, Hollister

Union Rd. bridge - view upstream. Banks 20-25 ft high, actively cut.

Ditto - view downstream

Site of Cienega Road house site where 40+ feet of bank 25 ft high was lost in 1998. View upstream to Hospital Road seasonal crossing.

Cienega Road house site with two cutting left bank levels

Right bank material may be mining spoils - about 20 ft high

Basal left and right bank alluvium

Old quarry site with berms in the channel just above Hospital Road Seasonal crossing site. Gravel processing site was upper left

Failing banks at site of past river bed mining just downstream fromTres Pinos Creek tributary. View of right bank ~ 20 ft high.

Natural slump (reactivated in 1995) near Tres Pinos Creek - View South

Ditto - this is a source of gravel-sized materials - Left Bank

Tres Pinos Quarry, Tres Pinos Ck. Right bank terrace mining; floodplain disposal

Tres Pinos Creek, view upstream - disposal in floodplain of fine spoils