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Lp 20 NB over San Idelfonso Creek

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

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

Lp 20 NB over San Idelfonso Creek in Webb 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 2012, making it 13 years old at the 2025 inventory.
It carries about 3,500 vehicles a day (traffic count year 2014).
Its listed owner is the state highway agency.
It is one of 185 of the 380 inventoried bridges in Webb County rated good (48.7%); 4 (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 895 ft
Location	5.10 Mi S of SH 359
NBI structure number	222400008616190
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Ih 35 Ml over US 59	1965	83,271	Fair
Ih 35 Ml over Del Mar Blvd	1962	74,048	Fair
Ih 35 Ml over Chicago St & Ugarte St	1965	59,067	Fair
Ih 35 Ml over Sanchez St & Park St	1965	50,413	Fair
Ih 35 over East Fork Manadas Creek	1960	49,524	Fair
Lp 20 over Kcs RR & Draw	1995	49,294	Good