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US 183 SB over Ih 35

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

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

US 183 SB over Ih 35 in Travis County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1998, making it 27 years old at the 2025 inventory.
It carries about 60,220 vehicles a day (traffic count year 2013).
Its listed owner is the state highway agency.
It is one of 558 of the 1,552 inventoried bridges in Travis County rated fair (36.0%); 1 (0.1%) 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	Prestressed concrete segmental box girder
Length	about 4,115 ft
Location	Between Lamar and Ih 35
NBI structure number	142270001513472
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
E Oltorf & N T/a over Ih 35 Ml	2017	185,424	Good
Ih 35 S T/a @ Olto over Ih 35 Ml	2021	185,424	Good
IH35 NB Ent Ramp over IH35 NB Exit Ramp	2019	185,424	Good
Ih 35 Ml over 26TH St (dean Keeton)	1976	178,313	Good
Ih 35 Ml & Fr over Butternut Branch	1953	176,077	Good
Ih 35 Ml & Fr over Tannehill Br	1953	170,802	Fair