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N3110 over Cottonwood Creek

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

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

N3110 over Cottonwood Creek in Logan 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 2006, making it 19 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 56 of the 280 inventoried bridges in Logan County rated good (20.0%); 55 (19.6%) 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 187 ft
Location	2W 4S of U.S. 77/S.H. 33
NBI structure number	279310000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-35 over Creek	1959	33,500	Fair
I-35 over Bird Creek	1959	25,900	Fair
I-35 over Pin Creek	1959	18,300	Fair
I-35 NB over Creek	1959	17,200	Fair
I-35 S.B. over Creek	1959	17,150	Fair
SB I-35 over Triplett Rd. Under	1998	16,900	Fair