Thurston County

NameLocationStatusDesignYear BuiltYear LostSpan Length (ft.)Total Length (ft.)
BN - West Bay TrestleBNRR over West Bay inletIntact but closed to all trafficTimber stringer------118.0
BNSF - Nisqually River BridgeBNSF RR over Nisqually RiverOpen to trafficPratt deck truss------658.0
Boston Street BridgeLower Custer Way over Deschutes RiverOpen to trafficLuten arch1915--75.1190.0
Capitol Blvd. BridgeCapitol Blvd. over I-5Open to trafficSteel arch1956--184.1283.2
Capitol Boulevard BridgeCapitol Boulevard over Deschutes R. & Owrr&N R.Open to trafficConcrete tee beam1936--100.11100.1
Deshutes River BridgeW. 4th Avenue over Deshutes RiverLostDeck arch1920--103.0950.2
Deshutes River Swing BridgeBridge over deshutes riverNo longer existsKingpost pony truss--------
Durgin Road TunnelDurgin Road under BNSF RROpen to trafficTunnel1912--19.0222.1
I-5 - Nisqually River Bridge (Northbound)I-5 over Nisqually RiverOpen to trafficPolygonal Warren through truss1937--323.2446.9
I-5 - Nisqually River Bridge (Southbound)Southbound I-5 over Nisqually RiverOpen to trafficPolygonal Warren through truss1967--321.9430.1
Nisqually River BridgeSW Nisqually Road over Nisqually RiverReplaced by a new bridgeDeck arch1927199897.1316.0
Overflow Channel BridgeOld US 99 over Overflow ChannelOpen to trafficOther1936--29.991.9
Percival Creek BridgeDeschutes Parkway over Percival CreekOpen to trafficConcrete stringer1952--60.0100.1
Perry Creek BridgeOld Hwy 410 over Perry CreekOpen to trafficConcrete tee beam1937--60.098.1
Swantown Slough Bridge (OldFourth Avenue over Swantown SloughNo longer existsConcrete pony/through girder18691922----
TMRW - Deschutes Waterway BridgeNorthern Pacific RR over Deschutes WaterwayOpenPony/through plate girder1929------
TMRW - WA 507 OverpassTacoma Rail, former CMSTP&P line over WA 507Open to trafficDeck plate girder1936--73.2764.1
Upper Custer Way BridgeCuster Way over Deschutes River and I-5Open to trafficDeck arch1956--165.0529.9