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Copy of Trestle History Page 14

A Timeline of the Many and Varied Attempts to

Restore the Petaluma Trestle

Date	Document or Event	Image or PDF
4/9/12	Preservation Architecture presents THE PETALUMA TRESTLE Standards Evaluation. This document presents and explains CEQA requirements for historic structure rehabilitation, and compares and evaluates the three alternatives and how they would (or would not) comply with CEQA standards. (Complete CEQA rehabilitation standards are presented on pages 1 & 2 of the attached document “04-09-12-Preservation-Architects-CEQA-full-doc.pdf” Alternative 1 – Trestle Rehabilitation Retains, repairs and selectively alters salvageable trestle components. Removes and replaces, in-kind, non-salvageable assemblies (i.e., components too deteriorated to repair). While extensive repair, alteration and selective replacement is proposed, (Alternative 1) retains historic materials and assemblies (pile bent, caps, stringers, rails) to the maximum feasible extent; replaces materials too deteriorated to repair (decking) with new to match the old; and selectively replaces original assemblies (fender piles, braces) with new materials and assemblies to replicate original forms. (All 3 Alternatives plan to completely replace the surface wood decking) Alternative 1 appears to comply with the applicable CEQA Standards for Rehabilitation (1,2,5,6, & 9). Alternative 2 – Trestle Replacement Retains all existing pile bents, pile braces and pile cap assemblies without alteration or repair/stabilization, reuses the steel rails. Adds: New structural pile bent and cap assemblies in new locations (between existing bents) Alternative 2 – Trestle Replacement – does not appear to conform to CEQA Standards 2, 5 and 6, so does not appear to meet the Standards for Rehabilitation. Alternative 3 - Trestle Reconstruction Salvages and reuses steel rails and selected wood components. Demolishes existing Trestle structure and replaces it with a new structure to match the design (or at least the shape and appearance) of the original. This version would substitute replacement materials that are able to convey the same visual appearance as the existing assemblies (Standards 4, 5), in addition to allowing for a contemporary re-creation (Standard 5). Otherwise, this alternative would not preserve remaining historic features (Standard 3). This might provide a successful treatment approach, yet also recognizing that the trestle reconstruction alternative requires further development to confirm applicability as well as feasibility. The report recognizes that the Trestle is a desirable structure within the City of Petaluma, and that it should be successfully reused at the very least for public access. Since little of the original structure would be reused this method would have to be clearly identified as a contemporary re-creation. The historic trestle itself would be gone. Treating it as a re-creation of the original might fly with CEQA but it depends on the finding that the existing trestle lacks historical, as well as structural, integrity. Editor’s note: This requires a very narrow definition of historical value.
6/14/12	“Public Notice to Owners & Occupants” published in Argus-Courier, inviting comments on “Mitigated Negative Declaration for the Downtown Trestle Project.” Before next City Council meeting scheduled for July 16,2012
6/25/12	Diane Ramirez tells Chris, “No need to talk to the City Council” Editor's note: City staff repeatedly tried to discourage Chris from communicating with the City Council. Did PublicWorks staff have a severe allergy to communications?
6/26/12	Staff Report recommends that the Historic and Cultural Preservation Committee should recommend the rehabilitation alternative approach (Alternative 1) for the Downtown Railroad Trestle Rehabilitation Project. Staff also recommends that the Historic and Cultural Preservation Committee recommend the City Council adopt the Mitigated Negative Declaration (MND) for the project. What is an MND? CEQA encourages protection of all aspects of the physical environment through disclosure of potential environmental impacts and appropriate action with regard to those impacts. Lead agencies have adopted “mitigated negative declarations” (MND) that are essentially plans of actions intended to mitigate or avoid a project’s potential significant impacts. If there are no adverse effects, or if the potential effect can be reduced to a level that is less than significant through project revisions, a Negative Declaration or MND can be adopted.
7/16/12	Agenda Item 5.B -- City Council meets and makes several resolutions re: the Trestle Rehabilitation Project. Pg 6: "BE IT FURTHER RESOLVED by the City Council that: 1. The Mitigated Negative Declaration is hereby adopted. 2. All mitigation measures identified in the Initial Study/Mitigated Negative Declaration are imposed upon the Project as conditions of approval." "BE IT FURTHER RESOLVED by the City Council that: Staff is directed to proceed with design and specification documentation for the Project, Alternative 1, Rehabilitation." Pg 7-8 Following the resolutions is a description of Alternative 1 - Rehabilitation Approach. This is basically the same as the earlier version of Alternative 1 from the presentation of 2-6-2012, with 3 scenarios for repairing or replacing rotten piles: A. Repair piles (sleeves with concrete mortar infill) B. Replace unusable wood piles with steel piles (augur type) C. Replace unusable piles with new wood piles (requires pile driving, vibration may damage nearby historic structures) In any of these scenarios there would be an effort to make all piles look consistent with each other, regardless of treatment.
7/27/12	Chris Stevick’s comments on Agenda Item 5.B from the City Council meeting of 7/16/12, pertaining to the Alternative 1 - Rehabilitation Approach 1. Understands that “screw piles” (steel auger type) would only be used for the 8 bents in the “global failure” area where the bank has subsided and pushed the piles away from the bank, for a total of 40. He figures only 3 per bent would equal 24. 2. He has observed that the displaced piles in the “global failure” area are only 5 to 8 inches away from plumb (true vertical) over a total height of 50 feet. Editor’s note: If a 50 foot pile is pushed 5” to 8” away from plumb at the top, assuming its base remains stationary, it means the pile has rotated only 0.5 to 0.75 of a degree (less than one degree) from plumb. Trestle pilings are commonly angled in slightly towards the center of the bent, so why not calculate the load bearing capacity at this slight angle to see if at least those towards the bank can be used without total replacement? 3. The only drawings of bents presented are as they exist now. Is there a cross section of a bent as planned, drawn to scale? 4. Could we see details of the cost estimates ($3.4 to $4.7 million)? 5. Advocates for a mid-span pedestrian bridge 6. Hopes a Rail Crane can be used for the restoration to minimize negative impacts to turning basin and to local businesses. 7. Considers City Council to be a de facto ‘board of review’ and hopes they give stakeholder input serious consideration as project proceeds.
7/27/12	KRCB's "Vintage Petaluma: All Aboard" video. Good two minute info about the trains that ran on the trestle when it was originally built.
8/15/12	Skip Sommer’s article with a short history of railroad development in Petaluma and why the Trestle had plywood covering the holes in the deck as a temporary solution proposed by Denman McNear, then President of Southern Pacific Railroad back in 1975 Denman McNear had been brought up in Petaluma, the youngest son of George .P. McNear and Ida Belle Denman. He told Skip, “SP was self-insured“. So, this wasn’t any kind of a problem for SP. He then instructed me, that I could put down plywood between the tracks and over the RR tie-openings at MY expense”

8/16/12	Memo from Diane Ramirez to Trestle Rehab Project File. This is essentially an updated version of the Alternative 1 - Rehabilitation Approach in the Agenda Item 5.B (July 16, 2012). This document has added repair scenarios D & E to the original 3. It also includes descriptions of the original Alternatives 2 & 3 even though the City Council has directed staff to disregard these and to only consider Alternative 1. Rehabilitation Scenario D: Three timber piles per bent would be replaced using a 16" diameter steel sleeve augured into the ground using a torque-down method with a new timber pile section extending from MHHW to the bent cap. The remaining, now non-load bearing, piles will have a 16" diameter (HDPE) sleeve installed to provide visual consistency. RECOMMENDED - Rehabilitation Scenario E: Three timber piles per bent would be replaced using a 16" diameter steel sleeve augured into the ground using a torque-down method with a new timber pile section extending from MHHW to the bent cap. The remaining, now non-load bearing, piles will have a 16" diameter steel sleeve installed to provide visual consistency. Editor’s note: In the presentation of 2/6/12 and in other in-person meetings Larry Zimmer, after alternatives 2 & 3 were shot down, keeps saying we have no preferences, yet clearly scenario E is ‘RECOMMENDED'.
9/24/12	A letter from Deborah Hirst, forwarded to Chris by Diane Ramirez, summarizing the staff’s position on methods of restoring the Trestle

Trestle History Page 14

1992
8/4/04
4/19/06
11/30/07
5/20/10
10/7/11
2/6/12
9/25/12
9/23/22

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