Bridge Street Bridge
Photo taken by Bill Culp, submitted by Craig Philpott
BH Photo #251803
In the 1920s, the National Park service was developing an automobile tour route that would simplify access to southern Utah and norther Arizona parks. They built this bridge, which removed about 30 miles from the approximately 90 mile route from Zion National Park to Pipe Spring National Monument.
In 2012, Utah DOT inspection showed significant deterioration and reduced the load rating from 25 to 14 tons. Federal funds were to replace this bridge with a new two-lane bridge. The town of Rockville now owns the bridge, so the 247 residents were polled which indicating a preference for keeping the old bridge.
In 2015 Rockville successfully petitioned for the scope of work to change from replacement to rehabilitation, thereby saving the last of the automotive Parker through truss bridges in the state.
While most of the budget is covered by federal funds, about $170,000 needs to be provided by the locals. The town has done volunteer fund raising to assist in saving their bridge.
The rehabilitation also includes upgrades to achieve a modern 25 ton weight rating. The upgrades include:
Replacing the stringers with stronger ones
Bolting "cover plates" to the bottom of the existing floor beams
Bolting plates to the first diagonals to improve compression loading
- Through truss bridge over Virgin River on Bridge Street in Rockville
- Rockville, Washington County, Utah
- Open to traffic
- Built 1924, NRHP listed 1995, condemend 2012, successful petition for rehab 2016.
- - C.F. Dinsmore Co. of Ogden. Utah (Erector)
- Minneapolis Steel & Machinery Co. of Minneapolis, Minnesota (Fabricator)
- one lane,11 panel, riveted, Parker, through truss
Length of largest span: 216.9 ft.
Total length: 222.1 ft.
Deck width: 17.7 ft.
Vertical clearance above deck: 15.9 ft.
Posted to the National Register of Historic Places in 1995
- Also called
- Bridge Street Bridge
- Approximate latitude, longitude
- +37.15889, -113.03750 (decimal degrees)
37°09'32" N, 113°02'15" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 12/319078/4114442 (zone/easting/northing)
- Quadrangle map:
- Springdale West
- 82063740 ft. above sea level
- Inventory numbers
- NRHP 95000982 (National Register of Historic Places reference number)
BH 33537 (Bridgehunter.com ID)
- Inspection (as of 02/2016)
- Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 31.2 (out of 100)
- Average daily traffic (as of 2010)
- August 5, 2017: Updated by Fmiser: wrote description, added design info, expanded one-line history
- May 18, 2015: Updated by Nathan Holth: Add NRHP Number
- April 16, 2014: Updated by Luke Harden: Added builder
- April 16, 2014: New photos from Steve Conro
- September 20, 2013: HAER photos posted by Nathan Holth
- March 30, 2013: New photo from Craig Philpott
- May 3, 2010: New Street View added by Craig Philpott