60.8459109, -148.9902453

Seward Highway Bridge - Chickaloon Bay Boat Ramp

Fee not yet verified Status not yet verified Public access Updated Oct 3, 2026
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Seward Highway Bridge - Chickaloon Bay Boat Ramp is a public launch on Twentymile River in Anchorage Municipality, Alaska . We currently track 2 public launch sites on this waterbody.

The nearest community is Girdwood, about 8.9 miles away. The closest larger city is Anchorage, approximately 39.9 miles away. The site lies within the Kern Creek-Frontal Turnagain Arm watershed, as defined by the EPA, with its latest assessment summarized below.

Sourced from U.S. Geological Survey . See the freshness details in the sidebar.

Boat ramps on Twentymile River

We currently track 2 public boat ramps on Twentymile River , including this one. The other public launch sites on this waterbody are listed below, starting with the closest.

Nearby boat ramps in Anchorage Municipality

We currently track 6 public boat ramps in Anchorage Municipality. The closest ramps are listed below, along with the waterbody each one provides access to.

Frequently asked questions

We haven't confirmed the current launch fee with the managing agency yet - check the fee badge at the top of this page, which updates as soon as we do.

We don't yet have a confirmed parking count for this location from the managing agency.

This ramp's access type isn't specifically flagged for hand-launched craft, but a trailer ramp can generally be used to launch a kayak or canoe by hand as well.

Seward Highway Bridge - Chickaloon Bay Boat Ramp provides access to Twentymile River, one of 2 public launch sites we track on it.

This listing is sourced from U.S. Geological Survey records.

This listing was last checked against the source on July 11, 2026. The page content itself was last updated on October 3, 2026.

Quick facts

County
Anchorage Municipality, Alaska
Nearby places
Girdwood (8.9 mi)
Whittier (11.4 mi)
Hope (22.4 mi)
Coordinates
60.8459109, -148.9902453 Gaia
Waterbody
Twentymile River
Access type
Public

Current weather

43°F Mostly Cloudy

Wind E 7 mph

Full NWS forecast · via National Weather Service
Last updated Oct 12, 2026 at 4:34 AM

Water quality

3%
Good
0%
Impaired
2%
Unassessed

Full EPA report · via EPA ATTAINS
Last updated Jul 12, 2026

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Data freshness

How current this listing is, and how it's been maintained.

Last checked against source
July 11, 2026
Page content updated
October 3, 2026
Listed on Boat Ramp US since
October 3, 2026