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HISTORIC SITE FORM (10-91) UTAH STATE HISTORIC PRESERVATION OFFICE 1 IDENTIFICATION Name of Property: Upper Middle Beaver Creek Bridge Address: N/A Twnshp 2N Range 15E Section: 1 City, County: Summit County UTM: Zone 12 568747 mE 4531576 mN Current Owner Name: United States Forest Service Uinta-Wasatch-Cache National Forest USGS Map Name & Date: Hole-in the-Rock 7.5' Quadrangle, 1967 Current Owner Address: Wallace Bennett Federal Building 125 South State Street Salt Lake City, UT 84138 Tax Number: n/a Legal Description (include acreage): The Upper Middle Beaver Creek Bridge is located on the Mountain View-Evanston Ranger District of the Uinta-Wasatch-Cache National Forest, approximately ½ mile south of the Wyoming/Utah state line along the Middle Fork of Beaver Creek. Bridge encompasses an area totalling less than ½ acre in size, and was constructed in 1951. 2 STATUS/USE Property Category building(s) x structure site object Evaluation eligible/contributing x ineligible/non-contributing out-of-period Use Original Use: Motor Vehicle Bridge Current Use: Motor Vehicle Bridge 3 DOCUMENTATION Photos: Dates slides: x prints: x historic: Drawings and Plans measured floor plans x site sketch map Historic American Bldg. Survey original plans available at: x other: Stream Channel Profile Research Sources (check all sources consulted, whether useful or not) abstract of title city/county histories tax card & photo personal interviews building permit USHS Library sewer permit USHS Preservation Files Sanborn Maps USHS Architects File obituary index LDS Family History Library city directories/gazetteers x local library:USFS Archives census records university library(ies): biographical encyclopedias newspapers Bibliographical References (books, articles, interviews, etc.) Attach copies of all research notes, title searches, obituaries, and so forth. All information included in this site form stems from United States Forest Service Engineering documents, for Upper Middle Beaver Creek Bridge file # 80164-0.6. As the bridge was constructed and maintained by the USFS, there is no other historic documentation associated with the structure. Researcher/Organization: Chris Merritt, Uinta-Wasatch-Cache National Forest Date: 11/23/2010 4 ARCHITECTURAL DESCRIPTION Building Style/Type: Standard Treated Timber Single Span Foundation Material: Additions: none n/a minor No. Stories: n/a Wall Material(s): major (describe below) Number of associated outbuildings 0 and/or structures Alterations: n/a none x minor major (describe below) 0 . Briefly describe the principal building, additions or alterations and their dates, and associated outbuildings and structures. Use continuation sheets as necessary. Upper Middle Beaver Creek Bridge was constructed in 1951 by the United States Forest Service according to the "Standard 28' Span Treated Timber Bridge" specifications approved by the Engineer for Region 4. Bridge abutments, fillers, planks, and sill are constructed using creosote and petroleum oil treated lumber. The 16' wide bridge road deck was created with a 3" x 14" laminated decking, with an originally planned 4" wearing surface of dirt and gravel. The cribbed-style abutments were constructed out of treated ties measuring 2" x 10" x 8', filler blocks and planks. The bridge deck is covered in laminated decking, and a 4" deep covering of dirt and gravel. Upper Middle Beaver Creek bridge exhibits standard USFS building techniques for the 1940s-1960s period, but is not a significant or noteworthy example. There are other better-preserved bridges from this period that are not in danger of failing and causing personal injury or property damage. 5 HISTORY Architect/Builder: A.L. Anderson, Region 4 Engineer, USFS Date of Construction: 1951 Historic Themes: Mark themes related to this property with "S" or "C" (S = significant, C = contributing). (see instructions for details) Agriculture Economics Industry Politics/ S Architecture Education Invention Government Archeology C Engineering Landscape Religion Art C Entertainment/ Architecture Science Commerce Recreation Law Social History Communications Ethnic Heritage Literature S Transportation Community Planning Exploration/ Maritime History Other & Development Settlement Military Conservation Health/Medicine Performing Arts Write a chronological history of the property, focusing primarily on the original or principal owners & significant events. Explain and justify any significant themes marked above. Use continuation sheets as necessary. The United States Forest Service (USFS) constructed the Upper Middle Beaver bridge in 1951, to allow more access to recreational opportunities in the Beaver Creek drainage. Designed by A.L. Anderson, the Region 4 Engineer, the Upper Middle Beaver Creek bridge was of common design and construction for 1940s-1960s USFS bridges . Forest Supervisor Despain approved the plans for construction on March 22, 1951, with construction initiated and completed during the summer of that year. The first known inspection of the Upper Middle Beaver bridge was completed in 1969, passing all established guidelines and requirements. Additional inspections were completed in 1981, 1993, 1995, 1997, 1999, 2001, 2003, 2005, 2007, and 2009. The 1993 inspection, and those following, all stated the need for maintenance and repair to the bridge. Finally Uinta-Wasatch-Cache National Forest engineer Oscar Mena completed the last inspection on September 15, 2009 and noted several critical issues. In particular, Mena notes that the abutment caps were bowing due to age and stress with the timber crib shifting due to a possibly rotten deadman timber. Due to the numerous structural issues associated with the bridge, the USFS decided to decommission the Upper Middle Creek Bridge in 2010, with implementation during 2011. Figure 1: Upper Middle Beaver Creek Bridge, 1969. From USFS Inspection Report completed June 12, 1969. Figure 2: Upper Middle Beaver Creek Bridge, 2009. Figure 3: Upper Middle Beaver Creek Bridge, 2009. Figure 4: USFS Plan for Upper Middle Beaver Creek Bridge, dated 3/22/1951. Figure 5: Circle denotes location of Upper Middle Beaver Creek Bridge. Hole-in-the-Rock 7.5' Quadrangle.