Arroyo Hondo Fish Passage & Upstream Habitat Restoration

Arroyo Hondo Fish Passage & Upstream Habitat Restoration (HM1D5R)

Location: Goleta, CA 93117 Santa Barbara County
Country: United States of America

N 34° 28.441', W 120° 8.405'

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Another Conservation Project of The Land Trust of Santa Barbara County

Arroyo Hondo creek has the best habitat on the south coast of Santa Barbara County for the endangered Southern California Steelhead (Oncorhynchus mykiss). This native fish spends part of its life in freshwater streams like this one, and part of its life in the ocean.

Miles of Steelhead habitat at Arroyo Hondo were cut off in 1949 during the construction of US 101. The culvert installed under the highway presented a barrier to upstream migration for spawning. During low flows, the height of the water column was insufficient for upstream migration, and during high flows, the velocity of the water too great for migration.

After several years of planning, construction of a fish passage started in late 2007 with the installation of 31 concrete baffles along the course of the culvert. These baffles increase the water column during low flows, and slow the creek's velocity in high flows. Each baffle intentionally gathers cobbles and creates an eddy pool, making ideal resting places for migrating fish.

This restoration project entailed creating a large resting pool just upstream from the culvert and other improvements throughout the watershed. Over an acre of degraded habitat was restored, streamside erosion was controlled, and more than 8,000 native plants were planted along the banks of the creek.
HM NumberHM1D5R
Placed ByThe Land Trust for Santa Barbara County, California Department of Fish and Game, and the Coastal Conservancy
Marker ConditionNo reports yet
Date Added Tuesday, September 16th, 2014 at 6:57am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)10S E 762670 N 3818428
Decimal Degrees34.47401667, -120.14008333
Degrees and Decimal MinutesN 34° 28.441', W 120° 8.405'
Degrees, Minutes and Seconds34° 28' 26.46" N, 120° 8' 24.30" W
Driving DirectionsGoogle Maps
Area Code(s)805
Closest Postal AddressAt or near 15550 El Camino Real, Goleta CA 93117, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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