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S.H. 56 over Deep Fork River

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

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

S.H. 56 over Deep Fork River in Okmulgee 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 7 (good condition) on the 0-9 scale.
It was built in 1974 and reconstructed in 2014, making it 51 years old at the 2025 inventory.
It carries about 1,300 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 104 of the 311 inventoried bridges in Okmulgee County rated good (33.4%); 54 (17.4%) 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 353 ft
Location	13.80 E Okfuskee C/l
NBI structure number	187790000000000
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. 75 over Negro Creek	1957	18,900	Fair
U.S. 75 over Eagle Creek	1957	18,500	Fair
U.S. 75 over Adams Creek	1957	18,000	Fair
U.S. 75 over Flat Rock Creek	1957	17,500	Fair
I-40 over Coal Creek	1963	16,000	Fair
U.S. 62/US 75 SB over Burgess Creek	2017	16,000	Good