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FM 423 SB over Cottonwood Branch

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

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

FM 423 SB over Cottonwood Branch in Denton County, Texas, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2011, making it 14 years old at the 2025 inventory.
It carries about 22,320 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 580 of the 987 inventoried bridges in Denton County rated good (58.8%); 11 (1.1%) are rated poor.
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


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 240 ft
Location	6.85 Mi N of SH 121
NBI structure number	180610156702013
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ih 35E Hov over Elm Fk Trinity River RL3	2006	168,046	Good
Ih 35E over Lynchburg Creek	2023	122,666	Fair
Ih 35W NB Conn A over FM 1515 (bonnie Brae Rd)	1970	116,407	Fair
Ih 35E Ml over FM 1515 (Bonnie Brae Rd)	1958	116,407	Good
Ih 35E Express Lns over FM 407	2017	116,366	Good
Ih 35E over Drain	1953	114,891	Fair