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Loop 306 WB Ramp over US 87/US 277

Tom Green County, Texas · rated Fair in the 2025 National Bridge Inventory

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

Loop 306 WB Ramp over US 87/US 277 in Tom Green County, Texas, 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 1972, making it 53 years old at the 2025 inventory.
It carries about 1,700 vehicles a day (traffic count year 2013).
Its listed owner is the state highway agency.
It is one of 119 of the 311 inventoried bridges in Tom Green County rated fair (38.3%); 0 (0.0%) 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	Continuous steel stringer or multi-beam girder
Length	about 410 ft
Location	at US 87
NBI structure number	072260007002057
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Loop 306 over Drainage Ditch	1969	35,960	Good
Loop 306 over Arroyo Drain	1980	35,960	Fair
US 87 over Draw	1969	24,527	Good
FM 584 Knickerbckr over Loop 306	1962	21,453	Fair
US 87 NB over Drainage Ditch	1968	20,925	Good
US 87 over Red Arroyo	1969	20,765	Fair