Requests for Proposals & Requests for Bids

Collaboration and Innovation in Community-Based Natural Resource Management

RFPs & RFBs

The Sierra Institute is committed to fostering collaboration and innovation in community-based natural resource management. We regularly seek partners, contractors, and consultants to support our work in forest and watershed restoration.

For general inquiries please email us at contracting@sierrainstitute.us

RFB: Lost Creek Crossing Upgrade

We’re seeking qualified contractors for the Lost Creek Crossing Upgrade in the Deer Creek watershed — a high-priority road-stream crossing project in partnership with the Lassen National Forest Almanor Ranger District. This upgrade will replace three aging culverts with an armored low-water crossing designed to restore aquatic organism passage, reduce chronic sedimentation, and eliminate road failure risk. Over 30 years, the project is projected to reduce sediment delivery to Deer Creek by more than 370,000 lbs.

All proposers must attend a pre-bid meeting at the project site. Interested bidders should expect to join the scheduled bid tour. Please let us know if you have a conflict and are not able to attend. Sierra Institute may accommodate alternative project tours on a case-by-case basis.

  • Pre-Bid Tour: October 14th, 2026, at 10:00 am

    Pre-Bid Tour Meeting Location: the St. Bernard Lodge (44801 Hwy 36 E, Mill Creek, CA 96061)

    Crossing Location: Lost Creek Crossing on FS Road 29N19 (40°18’20.0″N 121°22’44.5″ W)

  • Apply by December 15th, 2026 at 5:00 pm

RFB: Andesite Hand Thin & Pile Project

We’re seeking qualified contractors to conduct fuels reduction for the Andesite Hand Thin and Pile project in Tehama County near Mineral, CA. The project involves hand thinning and piling sub-merchantable trees across approximately 228 acres of public land in the Lassen National Forest to break up fuel continuity, reduce potential wildfire behavior, and protect local wildland-urban interface communities.

All proposers must attend a pre-bid meeting at the project site. Interested bidders should expect to join the scheduled bid tour. Please let us know if you have a conflict and are not able to attend. Sierra Institute may accommodate alternative project tours on a case-by-case basis.

  • Pre-Bid Tour: October 16th, 2026, at 10:00 am

    Pre-Bid Tour Meeting Location: Lassen Mineral Lodge, 38348 Highway 36 E, Mineral, CA 96063

    *Interested bidders are encouraged to RSVP so that we may notify you if the date needs to be changed.

  • Apply by Friday, October 23rd, 2026 at 5:00 pm

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