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S.H. 15 over Coon Creek

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

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

S.H. 15 over Coon Creek in Noble County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1951, making it 74 years old at the 2025 inventory.
It carries about 780 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 117 of the 342 inventoried bridges in Noble County rated good (34.2%); 12 (3.5%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated April 2024, on a 24-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	7	7	Good condition


Structure	Concrete culvert
Length	about 31 ft
Location	0.25 Mi W of Jct US 177
NBI structure number	125630000000000
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	April 2024
Inspection interval (item 91)	24 months
Scour (item 113)	5: foundations stable, scour within the limits of the footing or piles

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

Bridge	Built	Vehicles/day	Condition
I-35 over Creek	1960	17,600	Fair
I-35 over Hackberry Creek	1960	17,600	Fair
I-35 over Creek	1960	17,100	Good
I-35 over Creek	1960	17,100	Fair
I-35 over Red Rock CR Oflow & Rd	1960	17,100	Fair
I-35 over Doe Creek	1960	17,100	Fair