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N3300 over Caddo Creek

Carter County, Oklahoma · rated Fair in the 2025 National Bridge Inventory

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

N3300 over Caddo Creek in Carter County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 325 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 197 of the 337 inventoried bridges in Carter County rated fair (58.5%); 16 (4.7%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 178 ft
Location	4.3N 1.W of SH199 & SH142
NBI structure number	247140000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-35 over Sewer Creek	1965	32,700	Fair
I-35 over Creek	1965	32,400	Fair
I-35 over Creek	1965	32,200	Fair
I-35 over Creek	1965	31,200	Good
I-35 over Tulip Creek	1968	30,800	Good
I-35 over Tulip Creek	1968	30,800	Good