NOAA Fisheries has proposed renewing a permit that would let a contractor finish pile driving at the Seward cruise ship passenger dock, authorizing an estimated 298 instances of harassment across eight marine mammal species in Resurrection Bay. Fifteen of those fall in the injury tier.

The proposed renewal went on public inspection on September 4 and is scheduled for Federal Register publication on September 8. Comments must reach the agency by September 23. That is a 15-day window, added to the 30 days the public already received when the original authorization was proposed.

For Seward residents, Kenai Peninsula boaters and the charter and tour operators who work Resurrection Bay, the practical effect is that underwater construction noise loud enough to displace animals could continue into the 2027 visitor season, though NOAA expects only a small number of working days to remain.

Sixteen Remaining Piles and Twelve Working Days

Turnagain Marine Construction holds the current authorization, issued on September 5, 2025, and effective from September 21, 2025, through September 20, 2026. The company applied for renewal on June 23 because the work will not be finished before the permit expires.

Most of the project is done. Under the initial authorization, the contractor removed 1,820 fourteen-inch H-piles and 10 twenty-inch steel piles, installed and removed 92 temporary 36-inch piles, and installed 68 permanent 48-inch piles along with 16 sixty-inch and 16 seventy-two-inch piles.

What remains is comparatively small: installation and removal of eight temporary 36-inch steel template piles and installation of eight permanent 48-inch steel piles, using vibratory driving, impact driving and down-the-hole drilling. NOAA estimates 12 in-water construction days remain out of the 203 originally expected. The renewal would run from September 20 of this year through September 1, 2027.

Sound Zones Reaching Nearly 15 Miles Across the Bay

The estimated take numbers are driven by how far construction noise carries. For vibratory installation of 48-inch piles and for down-the-hole drilling on 36-inch piles, NOAA calculates a Level B harassment zone extending 24,100 meters, a little under 15 miles, and notes that the zone is truncated at that distance because land blocks it.

Impact driving of the same 48-inch piles produces a much smaller harassment zone of 1,360 meters, roughly 0.85 miles, but a far larger shutdown zone for low-frequency hearing groups at 2,000 meters. Down-the-hole drilling carries the same 2,000-meter low-frequency shutdown requirement.

Those figures come from the modeling in the original proposed authorization and were carried forward unchanged. They describe distances at which animals may change behavior or, closer in, risk hearing injury. They do not describe a zone in which animals are expected to die, and the permit does not authorize serious injury or mortality.

Species Covered and the Meaning of the Injury Tier

Level B harassment refers to disruption of behavior. Level A refers to the potential for auditory injury, meaning a permanent shift in hearing threshold. Both tiers are proposed here.

The renewal would authorize Level A harassment for gray whales, fin whales, humpback whales, killer whales, Dall's porpoise, harbor porpoise, Steller sea lions and harbor seals. Harbor seals account for the largest share at six, followed by Steller sea lions and Dall's porpoise at two each. The remaining species are listed at one apiece.

Level B numbers are larger. Harbor seals from the Prince William Sound stock account for 144, Western stock Steller sea lions for 96, and Alaska resident killer whales and Gulf of Alaska harbor porpoise for 12 each. Hawaii stock humpback whales account for 11. Every stock is listed at under 1 percent of its abundance.

Four listed populations are covered: Western United States Steller sea lions, Western North Pacific humpback whales, Mexico humpback whales and fin whales. The NMFS Alaska Regional Office issued a biological opinion concluding the action is not likely to jeopardize the continued existence of those species.

Monitoring Rules and One Requirement That Falls Away

Protected species observers approved by NOAA would monitor from 30 minutes before pile driving begins through 30 minutes after it stops. Work would be delayed or halted if an animal enters or is observed within a shutdown zone, and could not resume until the animal is visually confirmed outside the zone or 15 minutes pass without redetection for dolphins and seals, or 30 minutes for other species.

Soft start techniques would be required for impact driving. All work would stop if a marine mammal comes within 10 meters. Injured or dead marine mammals would have to be reported to the Office of Protected Resources and the Alaska Regional Stranding Network.

One measure from the final initial authorization would not carry over. That permit required a bubble curtain, a ring of rising air that dampens underwater sound, during installation of all 60-inch and 72-inch piles and at least 12 of the 48-inch mooring dolphin piles. Because the contractor completed those installations, the renewal contains no bubble curtain requirement, even though eight 48-inch permanent piles remain.

A Quiet First Round and a Short Second Window

NOAA received no public comments when it proposed the original authorization in July 2025. That original notice explicitly asked for comment on both the initial permit and the possibility of a renewal, so the current 15 day window is an additional opportunity rather than the only one. Under agency renewal regulations, the shortened period comes with direct notice to anyone who commented the first time, though comments are open to any member of the public.

The agency has preliminarily concluded that nothing in the first year of monitoring data changes its analysis, and that the renewal qualifies for the same categorical exclusion applied to the original.

Residents and organizations can review the original application, the renewal request, and the preliminary monitoring report on the NOAA Fisheries incidental take page. Comments go by email to the Permits and Conservation Division, and Carter Esch is listed as the contact.

Boaters and wildlife tour operators working Resurrection Bay during construction should expect monitoring by protected species observers and periodic work stoppages rather than any closure of the bay. Anyone who encounters a stranded or visibly injured marine mammal should contact the Alaska stranding network rather than approaching the animal.

The notice is dated September 2 and signed by Kimberly Damon-Randall, director of the NOAA Fisheries Office of Protected Resources. A final decision would follow the close of comments, and agency responses to any submissions would be summarized in the final notice. The official printed notice runs five pages.

What Readers Want to Know

What is being proposed?

NOAA Fisheries would renew an incidental harassment authorization letting Turnagain Marine Construction complete pile driving at the Seward cruise ship passenger dock, covering an estimated 298 harassment events across eight marine mammal species.

Does the permit allow animals to be killed?

No. The authorization covers harassment only. Level A harassment means potential hearing injury, and Level B means behavioral disruption. Serious injury and mortality are not authorized, and any injured or dead animal must be reported.

Which species are affected?

Gray, fin and humpback whales, killer whales, Dall's porpoise, harbor porpoise, Steller sea lions and harbor seals. Harbor seals and Steller sea lions account for the largest estimated numbers.

How long would the work continue?

The renewal would run from September 20 of this year through September 1, 2027. NOAA estimates only 12 in-water construction days remain, so the noise-producing work would occupy a small fraction of that period.

How can residents comment?

Comments must reach the NOAA Fisheries Permits and Conservation Division by email no later than September 23. The original application, renewal request, and monitoring report are posted on the agency's incidental take authorization page.

What should boaters in Resurrection Bay expect?

Protected species observers on station during work, periodic shutdowns when animals approach, and no general closure of the bay. Anyone who sees a stranded or injured marine mammal should call the Alaska Regional Stranding Network rather than approach it.