Table Two: Matrix of Threats to Eligible Resources on Route 66 in Oklahoma

Segment	Survey Property Number	Observed Traffic Volume	Threats Particular to Roadbeds and decking	Threats particular to Bridges			Threats Particular To all Resources	Maintenance Conditions	Comments
Segment	Survey Property Number	Observed Traffic Volume	Threats Particular to Roadbeds and decking	Threats to Substructure and Supports	Threats to Superstructure Members	Threats to Rails and Safety Features	Threats Particular To all Resources	Maintenance Conditions	Comments
Miami Original Nine-Foot Section of Pavement	5	Light	Cracking due to weathering frost, vegetation, gravel being graded over the existing road					Gravel / minimal maintenance	Concern for tenuous nature of pavement
Horse Creek Bridge	8	Extremely Heavy	Weight of commercial vehicles using this bridge						Narrow Width, 24 foot wide pavement, no shoulders
Eleventh Street Arkansas River Bridge	22	None,	Cracking pavement, weeds growing in cracks					No apparent maintenance	No longer used for traffic, needs reuse options; Closed to vehicular and pedestrian traffic
Bridge No. 18 at Rock Creek	26	Moderate	Brick pavement cracking	Flood waters can cover deck	Rusting supports and structure	Extensive Damage	Utility Pipeline attached to deck support members	No apparent maintenance, lower chord of sway bracing hit by high water	Narrow 18 foot pavement, constraints on height clearance
Arcadia Route 66 Roadbed	54	Light	Cracking due to frost, vegetation and weathering					Minimal maintenance	Note difference between “Bates modified” and “Bates original” segments
US 281 Spur, Roadbed known as the Bridgeport Section	69	Light	Cracking and weathered pavement, with some asphalt patches					Concrete pavement with asphalt patches	Original concrete, note lip in pavement at edges
Roadbed South of Narcissa	6	Light	Cracking due to weathering frost, vegetation, gravel being graded over the existing road					Gravel / minimal maintenance	Concern for tenuous nature of pavement
Roadbed northeast of Afton	7	Light	Cracking due to weathering frost, vegetation, gravel being graded over the existing road					Gravel / minimal maintenance	Concern for tenuous nature of pavement
Bridge #1860-0724X over Little Cabin Creek	10	Medium							22 foot deck width; Overall good condition
Pryor Creek Bridge	12	Light	Cracking and neglected					Rust needs paint	18 foot width, has both height and weight limits
Foyil Roadbed	14	Light	Cracking due to weathering frost, vegetation, gravel being graded over the existing road					minimal maintenance	Concern for tenuous nature of pavement
Twin Bridges over Bird Creek	15	Heavy			Members rusted and in need of paint			Twin bridges overall good condition; need paint
Bridge over Spunky Creek #66E0570N4080006	18	Light	Deteriorating wooden planks	Some wooden supports damaged	Members rusted and cracking	Rails worn and damaged by traffic	Appears to be damaged by periodic flooding	Wooden deck covered in gravel and in need of repair and attention	Single land 12 foot wide deck; need immediate attention
Roadbed west of Supulpa	27	Light	Cracking due to weathering frost, vegetation, gravel being graded over the existing road					minimal maintenance	Concern for tenuous nature of pavement
Tank Farm Loop Roadbed (County control)	31	Light	Cracking and neglect					Asphalt patches	18 foot wide pavement
Tank Farm Loop Roadbed (private)	32	Light	Cracking and vegetation						18 foot wide pavement
Little Deep Fork Bridge	37	Somewhat remote, not on the regularly traveled sections	Deteriorating wooden planks		Members rusted and cracking	Rails worn and damaged by traffic	Appears to be subject to floods	Wooden Deck with gravel on top	Could support only light- weight vehicles, single lane 14 feet wide.
Bridge over Salt Creek	43	none	Cracked pavement and deterioration at road/deck seam						Deck width 20 feet; no longer used for traffic; one end barricaded
Ozark Trail Marker	46						Extensive graffiti		Remote location
Bridge over Dosie Creek #41E0890N3520007	47	Light	Deteriorating wooden planks		Members rusted and cracking	Rails worn and damaged by traffic		Wooden deck covered in gravel and in need of repair and attention	Deck 16 feet wide; one wooden lane
Bridge over Captain Creek #4124-0157X	50	Medium	Cracked pavement and deterioration at road/deck seam						Deck 22 feet wide; 10 foot wide lanes
Lake Overholser Bridge	56	Medium	Cracked pavement due to weathering		Members painted and in good condition	Good condition		Concrete deck with asphalt overlay	Narrow lanes, 2 ten foot wide lanes, no shoulders
Rock Island Line Viaduct	61
Pedestrian Underpass	63						Graffiti and dumping of garbage in tunnel	Needs periodic cleaning	good condition
Rail Road Trestle	64
Roadbed west of El Reno	65	Light							Generally in good condition, two 10 ft wide lanes, concrete pavement no overlay.
Concrete Drain Box	66 (within 65)	Medium	Asphalt overlay on deck severely cracked			Damaged concrete rails	Cattle fencing applied to drain	Rails need immediate attention	Basically in good condition, needs immediate maintenance, stamped 1928 date of construction.
Bridge over Powder Face Creek	67 (within 65)	Medium				Damaged concrete rails		Concrete deck in good condition	Construction dates 1932 stamped on bridge
Bridge over Creek	68 (within 65)	Medium					Barbed wire attached to bridge	Concrete deck in good condition	Construction dates 1932 stamped on bridge, deck supported by six I-beams
20 mile segment of Roadbed beginning on the east side of Canadian River	70	Light	Cracking and weathered pavement, with some asphalt patches					Concrete pavement with asphalt patches	Some bridges removed and replaced with culverts like structures and drains
Bridge over Canadian River	71 (within 70)	Light					Utility and pipelines attached to bridge, some graffiti	Asphalt deck well maintained	25 foot wide deck, no shoulders
Bridge over unnamed Creek	72 (within 70)	Meduim	Narrow deck		I-beam supports sporadic rust			Concrete deck in good condition	30 foot-wide deck, initial approach spans supported by concrete uprights while center of bridge supported by fabricated metal posts
Bridge .75 miles west of Hinton Jct.	73 (within 70)	Medium	Asphalt patches on deteriorating seams					Concrete deck in with asphalt patches	Four spans, seven I-beam deck beams, 27 foot-wide deck
Bridge 1.4 miles west of the Bridgeport town turnoff	74 (within 70)	Medium			Rusting I-beam deck supports				27 foot wide deck
Bridge over White Canyon Creek	75 (within 70)	Medium				Some damage to concrete rails			Excellent condition, 27 foot wide deck
Bridge over Dead Woman Creek	76 (within 70)	Medium				Rusting members			22 foot wide deck, 4 deck beams, 6 deck stingers, concrete abutments
Bridge over unnamed Creek	77 (within 70)	Medium		West abutment undermined by creek erosion					22 foot wide deck
Bridge over Cedar Canyon Creek	78 (within 70)	Medium			Rusting members			Concrete deck with asphalt patching	Overall good condition, needs paint, 1930 date in abutment, 22 foot wide deck
Bridge 1.3 miles east of Hydro Town turnoff	79 (within 70)	Medium			I-beams supporting deck rusting	Concrete rails damaged by traffic accidents	Modern riprap abuts substructure	Damaged rails need attention	Deck and structure in good condition, six I-beams, 22 foot wide deck
Bridge 1.4 miles west of the Hydro Town turnoff	80 (within 70)	Medium			All members show some rusting		Concrete structures from adjacent I-40 abut concrete substructure	Members in need of paint	Overall good condition, needs paint, 22 foot wide deck, bridge stamped 1930
Trestle east of Weatherford	81 (within 70)	None, appears abandoned	Vegetation growing between rails and ties, rotting timber sub-deck upon which gravel deck with ties and track sits		Rusting I-beam supports		Concrete supports and deck supports contain graffiti	Track appears abandoned	This spur appears to be abandoned, timbers rotting
Roadbed east of I-40 in Custer County	85
Roadbed west of I-40 in Custer County	96
Roadbed west of Elk City	108
Tiber Creek Bridge	109	Medium	Very narrow roadway				Portal struts removed to facilitate larger vehicles; Graffiti on some members	Appears to have been recently painted	Good condition, 18 foot wide deck