| 词条 | Bluff Dale Suspension Bridge |
| 释义 |
|bridge_name = Bluff Dale Suspension Bridge |image = BluffDaleBridgeMainSpan.JPG |caption = Bluff Dale bridge, as seen from the modern bridge that has replaced it for vehicle traffic. |official_name = |carries = Pedestrian way on County Road 49 (Berry's Creek Rd.) |crosses = Paluxy River |locale = Berry's Creek Rd., Bluff Dale, Texas |maint = |id = |designer = Edwin Elijah Runyon |design = Cable-stayed |material = Wrought iron |spans = 3 |pierswater = 2 |mainspan = {{Convert|140|ft|m}} |length = {{Convert|200|ft|m}} |width = {{Convert|13|ft|m}} |height = |load = |clearance = |below = |owner = Erath County |traffic = |begin = 1890 |complete = 1890 |open = |heritage = |collapsed = |preceded = |followed = |closed = |toll = |map_type = |map_relief = |map_text = |map_width = |coordinates = {{coord|32|21|14|N|98|1|34|W|display=inline,title}} |lat = |long = |extra = {{Infobox NRHP | embed = yes | name = Bluff Dale Bridge{{efn|The bridge's historic name as listed on the National Register was changed from "Bluff Dale Suspension Bridge" to "Bluff Dale Bridge" on January 19, 2016.[1]}} | nrhp_type = | image = | caption = | locmapin = Texas#USA | map_label = Bluff Dale Bridge | locmap_relief = yes | area = {{convert|1|acre}} | added = December 20, 1977 | refnum = 77001440[2] | designated_other1=TSAL | designated_other1_date=May 28, 1981 | designated_other1_number=8200000250 | designated_other1_num_position=bottom }} }} The Bluff Dale Suspension Bridge is a historic bridge located near Bluff Dale, Texas, United States. The bridge was built in 1891 and the spans {{convert|225|ft|m}} across the Paluxy River. The road deck is {{convert|28|ft|m}} above the river and held in place by fourteen one-inch cables attached to the towers made of nine-inch iron pipe. HistoryThe bridge was originally constructed across the river on a dirt road that became Texas state highway 10, which is now U.S. Route 377. In 1933, a new bridge was built to handle the increasing traffic on U.S. 377. The old bridge was relocated in 1934, {{convert|1.5|mi|km}} upstream and extended from {{convert|200|to|225|ft|m}}.[3] The bridge was added to the National Register of Historic Places on December 20, 1977. The bridge is on Preservation Texas' 2009 list of most endangered places due to its poor condition and lack of funds for restoration. It was closed to vehicular traffic in 1989 because of its advanced state of deterioration.[4] Structure typeDespite the name given in Historic American Engineering Record documentation, the Bluff Dale Suspension Bridge is actually a cable-stayed structure.[5] Its deck is suspended from multiple layers of stay cables radiating from the towers, some terminating at the deck and others running continuously from one tower to the other. This pattern of cables was established in designer Edwin Elijah Runyon's first U.S. patent, No. 394,940.[6] It is known as one of only two examples of Runyon's patents, along with the Barton Creek Bridge in Huckabay, Texas. Its hand-twisted wire cable and non-traditional use of wrought-iron pipe components make it a notable example of vernacular American bridge construction. See also{{Portal|NRHP|Bridges|Texas}}
Notes{{notelist}}References1. ^{{citation | last = National Park Service | authorlink = National Park Service | title = Weekly List of Actions Taken on Properties: 1/19/16 through 1/22/16 | date = January 29, 2016 | url = http://www.nps.gov/nr/listings/20160129.htm | accessdate = January 28, 2016 | archiveurl = https://web.archive.org/web/20160128223008/http://www.nps.gov/nr/listings/20160129.htm | archivedate = January 28, 2016 }}. 2. ^{{NRISref|version=2010a}} 3. ^"Bluff Dale Suspension Bridge" Texas Historic Sites Atlas. Retrieved Aug 26, 2009. 4. ^{{cite web|url=http://preservationtexas.org/endangered/2009.htm|title=Preservation Texas: Most Endangered Places 2009|accessdate=2009-05-20|deadurl=yes|archiveurl=https://web.archive.org/web/20090305062347/http://preservationtexas.org/endangered/2009.htm|archivedate=2009-03-05|df=}} 5. ^{{Cite web |url=https://cdn.loc.gov/master/pnp/habshaer/tx/tx0700/tx0762/data/tx0762data.pdf |title=Bluff Dale Suspension Bridge |last=Brown |first=Mark M. |date=August 1996 |website=Historic American Engineering Record |publisher=Library of Congress |location=Washington, D.C. |page=7 |accessdate=2018-10-05}} 6. ^Stephen G. Buonopane and Mark M. Brown, "History and Engineering Analysis of the 1890 Cable-Stayed Bluff Dale Bridge," in Proceedings of the First International Congress on Construction History (Madrid: Instituto Juan de Herrera, 2003): 433-442. External links{{Commons}}
|structure = Bridges |place = Paluxy River |bridge = Bluff Dale Suspension Bridge |bridge signs = |upstream = Unnamed bridge |upstream signs = |downstream = Berry's Creek Road Bridge |downstream signs = }}{{NRHP in Texas}}{{Erath County, Texas}} 12 : Bridges completed in 1890|Road bridges on the National Register of Historic Places in Texas|Cable-stayed bridges in the United States|Buildings and structures in Erath County, Texas|Road bridges in Texas|Pedestrian bridges in Texas|Former road bridges in the United States|Historic American Engineering Record in Texas|Relocated buildings and structures in Texas|National Register of Historic Places in Erath County, Texas|Wrought iron bridges in the United States|1890 establishments in Texas |
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