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N4640 over Tin Cup Creek

Sequoyah County, Oklahoma · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

N4640 over Tin Cup Creek in Sequoyah County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2015, making it 10 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 98 of the 262 inventoried bridges in Sequoyah County rated good (37.4%); 9 (3.4%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 90 ft
Location	2N 1.4E of US59/US64N Jct
NBI structure number	310090000000000
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Oklahoma department of transportation.

Bridge	Built	Vehicles/day	Condition
U.S. 64 over Ark River & R.R./ Co.rd.	1973	32,947	Fair
I-40 WB over U.S. 64 Under	2020	23,340	Good
I-40 EB over U.S. 64 Under	2020	23,340	Fair
I-40 WB over Little Sallisaw Creek	2020	23,340	Good
I-40 EB over Little Sallisaw Creek	2020	23,340	Good
I-40 over Farm Rd Under	1967	19,600	Fair