MO YY Middle Fork Grand River Bridge

Photos

View from the SouthWest

Photo taken by Paul Hamby in November 2010

BH Photo #186130

Written by Eric Kinkhorst

Highway YY was once US 169

Overview: Pony truss bridge over Middle Fork Grand River on Route YY (formerly MO 29)
Location: Worth County, Missouri
Status: Intact but closed to all traffic
Future prospects: Scheduled for replacement 2021
History: Built 1927; closed September 2018 after failing inspection
Builder: - Pittsburgh-Des Moines Steel Co. of Des Moines, Iowa & Pittsburgh, Pennsylvania (contractor)
Design: Riveted Warren pony truss with alternating verticals
Dimensions: Length of largest span: 70.8 ft.
Total length: 320.7 ft.
Deck width: 20.0 ft.
Approximate latitude, longitude: +40.41542, -94.44378 (decimal degrees)
40°24'56" N, 94°26'38" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/377507/4474867 (zone/easting/northing)
Quadrangle map:: Grant City
Land survey: T. 65 N., R. 32 W., Sec. 25
Average daily traffic (as of 2017): 185
Inventory numbers: MoDOT H-617 (Missouri Dept. of Transportation bridge number)
MONBI 5063 (Missouri bridge number on the National Bridge Inventory)
BH 22823 (Bridgehunter.com ID)
Inspection report (as of September 2018): Overall condition: Poor
Superstructure condition rating: Critical (2 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Serious (3 out of 9)
Sufficiency rating: 17 (out of 100)
View more at BridgeReports.com

Eric Kinkhorst - erick [dot] bud [at] gmail [dot] com
David Backlin - us71 [at] cox [dot] net
Worth County Route YY Bridge Now Closed | Missouri Department of Transportation - The bridge on Route YY over the Middle Fork of the Grand River closed
Neil Krout - kickinpony [dot] 66 [at] gmail [dot] com