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Pensacola Dam

Photos 

Pensacola Dam

looking east

Photo from old postcard

BH Photo #464989

Street View 

Facts 

Overview
Dam carrying S.H. 28 over Neosho (Grand) River between Langley & Disney.
Location
Mayes County, Oklahoma
Status
Open to traffic
History
Built 1940 by the Grand River Dam Authority.
Builders
- John Duncan Forsythe
- W. R. Holway
Design
Concrete multiple-arch (51) dam across the Neosho (Grand) River carrying S.H. 28. World's longest multiple-arch dam.
Dimensions
Length of largest span: 61.4 ft.
Total length: 4,284.3 ft. (0.8 mi.)
Deck width: 19.7 ft.
Recognition
Posted to the National Register of Historic Places on September 2, 2003
Also called
Grand River Dam
Approximate latitude, longitude
+36.46974, -95.03823   (decimal degrees)
36°28'11" N, 95°02'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/317383/4037983 (zone/easting/northing)
Quadrangle map:
Spavinaw
Elevation
780 ft. above sea level
Average daily traffic (as of 2016)
3,000
Inventory numbers
NRHP 03000883 (National Register of Historic Places reference number)
OKNBI 275690000000000 (Oklahoma bridge number on the National Bridge Inventory)
BH 37900 (Bridgehunter.com ID)
Inspection report (as of November 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 28.4 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 23, 2020: New photo from Geoff Hubbs
  • January 15, 2020: New Street View added by Geoff Hubbs
  • October 28, 2008: Added by Rick Mattioni

Sources 

Comments 

Pensacola Dam
Posted November 28, 2020, by Dennis DeBruler (bruler [at] xnet [dot] com)

A multi-arch dam in Canada is 20' longer.

https://www.405magazine.com/oklahoma-and-that-dam-record/