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FM 1668 over Turkey Creek

Zavala County, Texas · rated Good in the 2025 National Bridge Inventory

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

FM 1668 over Turkey Creek in Zavala County, Texas, 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 1959, making it 66 years old at the 2025 inventory.
It carries about 680 vehicles a day (traffic count year 2013).
Its listed owner is the state highway agency.
It is one of 45 of the 72 inventoried bridges in Zavala County rated good (62.5%); 1 (1.4%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
It was rated fair in the 2024 inventory and is now good (culvert 6 to 7).
Its most recent inspection on record is dated November 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	6	7	Good condition


Structure	Concrete culvert
Length	about 32 ft
Location	8.0 Mi NW of FM 393
NBI structure number	222540159301001
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	November 2024
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 Texas department of transportation.

Bridge	Built	Vehicles/day	Condition
US 57 over Draw	1969	5,883	Good
US 57 over Draw	1970	5,883	Good
US 57 over Draw	1970	5,883	Good
US 83 over Turkey Creek	1947	5,854	Fair
US 57 over Yo-lo Digo Creek	1952	5,247	Good
US 57 over Leona River	1952	4,470	Fair