2 votes

Conway Bridge


Photo taken by Calvin Sneed in June 2010


BH Photo #167204

Street View 


Four-span Steel & Lebby closed spandrel arch bridge over Nolichucky River on Briar Thicket Road/Knob Creek Road
Cocke County, Tennessee, and Greene County, Tennessee
Open to traffic
Built in 1924-1925 to replace the old Conway Ferry, which was being eliminated because the Tennessee Eastern Electric Company built the Nolichuky Dam upriver that changed the level of the stream.
- Steel & Lebby Bridge Co. of Knoxville, Tennessee
Closed Spandrel Dual Ribbed Arch
Length of largest span: 96.1 ft.
Total length: 414.5 ft.
Deck width: 17.0 ft.
Posted to the National Register of Historic Places on November 20, 2009
Also called
Nolichucky River Bridge
Approximate latitude, longitude
+36.12245, -83.12523   (decimal degrees)
36°07'21" N, 83°07'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/308741/3999621 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2019)
Inventory numbers
NRHP 09000948 (National Register of Historic Places reference number)
TN 150A9090001 (Tennessee bridge number)
BH 32465 (Bridgehunter.com ID)
Inspection report (as of October 2018)
Overall condition: Poor
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 47.3 (out of 100)
View more at BridgeReports.com

Update Log 

  • June 7, 2010: New photos from Calvin Sneed
  • August 1, 2008: Updated by Calvin Sneed


  • Calvin Sneed - us43137415 [at] yahoo [dot] com


Conway Bridge
Posted August 14, 2020, by Calvin Sneed (us43137415 [at] yahoo [dot] com)

After lots of research and several visits, I located one other dual-ribbed concrete arch bridge, this one open-spandrel.

The Easley Ford Bridge over the Conasauga River in western Polk County. The 182-foot bridge contains one span, a 170-foot open spandrel dual ribbed concrete arch. Lateral bracing bars connect the paired ribs. The bridge has a curb-to-curb width of 15.7 feet and an out-to-out width of 17.7 feet. The railing is post and rail.

Conway Bridge
Posted June 8, 2010, by James Baughn (webmaster [at] bridgehunter [dot] com)

I've added a new design category called "Ribbed closed-spandrel arch." I was going to call it "dual-ribbed", but decided to leave it open in case somebody finds a three- or four-ribbed example.

Conway Bridge
Posted June 8, 2010, by Robert Elder (robertelder1 [at] gmail [dot] com)

Yes, the Georgia example certainly appears to be of the same design.

Conway Bridge
Posted June 8, 2010, by Eddie Douthitt (eddied62 [at] windstream [dot] net)

I believe this bridge in Georgia would also be considered a dual rib closed spandrel arch.


Conway Bridge
Posted June 8, 2010, by Robert Elder (robertelder1 [at] gmail [dot] com)

Interesting. I have seen many dual ribbed open-spandrel arches, but this is the first dual ribbed closed spandrel I have encountered. Perhaps this was a localized design.

Conway Bridge
Posted June 7, 2010, by Calvin Sneed (us43137415 [at] yahoo [dot] com)

They're not curved tee beams. T-DOT officially says all the spans are dual ribbed arches. A magnificent, elegant bridge in a quiet, tranquil setting.

Conway Bridge
Posted June 7, 2010, by Robert Elder (robertelder1 [at] gmail [dot] com)

Initially this bridge does resemble a deck arch. However, it might be better classified as a curved T-beam. Anybody have any thoughts on this?