6 votes

Karsten Thot Bridge



Karsten Thot Bridge

bridge in 2012

Honolulu Star-Advertiser

View this photo at staradvertiser.com

Street Views 


Through truss bridge over North Fork Kaukonahua on Kamehameha Highway
Wahiawa, Honolulu County, Hawaii
Open to traffic
Future prospects
Repair project scheduled for August 2015
Built 1932
- G.K. Dawson
Warren Through truss
Length of largest span: 210.0 ft.
Total length: 213.9 ft.
Deck width: 24.0 ft.
Posted to the National Register of Historic Places
Also called
Kamehameha Highway Bridge
Kaukonahua Bridge
Approximate latitude, longitude
+21.50088, -158.02947   (decimal degrees)
21°30'03" N, 158°01'46" W   (degrees°minutes'seconds")
Approximate UTM coordinates
4/600529/2377894 (zone/easting/northing)
Quadrangle map:
Inventory number
BH 12696 (Bridgehunter.com ID)
Inspection (as of 06/2012)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Critical (2 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 4.0 (out of 100)
Average daily traffic (as of 1999)

Update Log 

  • August 3, 2015: Updated by Andy Peters: Adds NBI data
  • March 11, 2012: New Street View added by Craig Philpott
  • November 22, 2011: Updated by Craig Philpott: refined design


  • K. A. Erickson
  • Craig Philpott - cphilpott [at] puc [dot] edu
  • Andy Peters - anpete1971 [at] gmail [dot] com


Karsten Thot Bridge
Posted August 3, 2015, by Andy Peters (anpete [at] yahoo [dot] com)

The Hawai'i DOT is beginning a $7.9 million project to repair the Karsten Thot Bridge. "The project is expected to prolong the life of the bridge and improve safety for vehicles, bicyclists and pedestrians. The steel truss bridge was last repaired in 2012. This project will repair corroded structural steel, walkways and guard railings. The bridge willalso be repainted."


Karsten Thot Bridge
Posted September 18, 2012, by LessZoa (less [dot] zoa [at] gmail [dot] com)

The bridge was closed on Sunday, September 16, 2012 for much needed repairs. Trusses and rivets/bolts have been rusting without proper maintenance and the bridge has become a safety concern.

Traffic was limited to vehicles below 10-tons, removing city bus, construction vehicles and larger truck access; however local police have noted not everyone followed the highly visible advisories set up along Kamehameha Hwy. A decision was made to totally close the bridge to expedite repairs.

The closure has snarled commuter traffic coming from the North Shore, Whitmore Village, and the Naval Communication Base (NCTAMS) in the early morning on Monday, September 17, 2012. Many on their way to work sat in the long, single lane traffic for over an hour without even getting out of Whitmore. Bused students to area schools were late by as much as 2 hours.

Work is expected to take approximately 6 weeks, however local sentiment (this writer admits to being a little biased here) expects it to take much longer. Continuing coverage by local news outlets can be found over the internet.

Kamehameha Highway Bridge
Posted February 13, 2008, by Ralph Kam (ralph [dot] kam [at] gmail [dot] com)

Bridge is named Karsten Thot Bridge.