Home › Oklahoma › Marshall County › S.H. 99 over Creek

S.H. 99 over Creek

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

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

S.H. 99 over Creek in Marshall 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 1960, making it 65 years old at the 2025 inventory.
It carries about 1,400 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 41 of the 79 inventoried bridges in Marshall County rated good (51.9%); 9 (11.4%) 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 January 2023, 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 26 ft
Location	0.15 E Jct Sh-99c
NBI structure number	147340000000000
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	January 2023
Inspection interval (item 91)	24 months
Scour (item 113)	4: foundations stable, field review says exposed foundations need protection

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

Bridge	Built	Vehicles/day	Condition
U.S. 70 over Whiskey Creek	1933	10,200	Fair
S.H. 199 over Glasses Creek	1960	8,600	Fair
S.H. 99 over Whiskey Creek	1960	6,700	Fair
U.S. 70 over Little Glasses Creek	1946	6,300	Fair
U.S. 70 over Creek	1958	6,300	Good
U.S. 70 over Creek	1935	6,200	Good