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Ih 20 Bus over Drain

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

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

Ih 20 Bus over Drain in Martin 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 1963 and reconstructed in 2007, making it 62 years old at the 2025 inventory.
It carries about 3,580 vehicles a day (traffic count year 2013).
Its listed owner is the state highway agency.
It is one of 13 of the 19 inventoried bridges in Martin County rated good (68.4%); 0 (0.0%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated February 2023, 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	7	7	Good condition


Structure	Concrete culvert
Length	about 34 ft
Location	0.65 Mi E of SH 137
NBI structure number	061560000516136
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	February 2023
Inspection interval (item 91)	24 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
Ih 20 over Mustang Draw	1954	25,540	Fair
Ih 20 over Draw	1968	22,806	Good
Ih 20 EB over SH 137	1968	14,350	Fair
Ih 20 WB over SH 137	1968	14,157	Fair
Ih 20 EB over Bi 20	2022	11,742	Good
Ih 20 WB over Bi 20	2022	11,742	Good