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E1790 over Diamond Spring Br.

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

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

E1790 over Diamond Spring Br. in Johnston 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 1998, making it 27 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 94 of the 154 inventoried bridges in Johnston County rated fair (61.0%); 6 (3.9%) 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 tee beam
Length	about 55 ft
Location	2 S & .2 E of Connerville
NBI structure number	244400000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
S.H. 22 over Pennington Creek	1954	7,000	Fair
S.H. 22 over Sand Creek	1964	4,100	Good
S.H. 22 over Rock Creek	1964	3,700	Fair
S.H. 22 over Little Sandy Creek	1975	3,700	Fair
S.H. 22 over Big Sandy Creek	1975	3,700	Fair
S.H. 199 over Camp Creek	1959	3,500	Fair