Roadway Standards (English) - Texas Department of Transportation
WEBJul 28, 2023 · Download MicroStation (DGN) files of roadway standards for design and construction of Texas highways. See the list of standards, memos of issued or revised standards, and quick links to barrier and guardrail systems.
Roadway Design Manual: Barrier Need - Texas Department of Transportation
WEBConcrete barriers are placed primarily where little movement of the barrier can be tolerated and typically do not deform when impacted. For concrete barriers that are anchored, between 0 and 1-ft of deflection is anticipated for a TL-3 (high-speed) pickup truck impact.
WEBTHE TL-3 LOW PROFILE CONCRETE BARRIER IS APPROVED FOR USE WITHIN TEMPORARY WORK ZONE LOCATIONS FOR HIGH-SPEED CONDITIONS. 2. PRECAST LOW PROFILE T-BARRIER (LPTB), LENGTH SHALL BE 30 FT. 3. CONCRETE SHALL BE CLASS H WITH A MINIMUM COMPRESSIVE STRENGTH OF 3,600 PSI. CHAMFER EXPOSED EDGES ƒ" AS SHOWN ON DETAIL.
Chapter 7: Miscellaneous Design Elements - Texas Department of ...
WEBFor new construction, an urban freeway usually includes a relatively narrow flush median (see Medians in Chapter 3 Section 2) with a concrete barrier. In determining the type of barrier to be used, the primary consideration is safety, both for vehicular impacts and during maintenance activities.
Roadway Design Manual - Texas Department of Transportation
WEBA comprehensive guide for designing roadways in Texas, covering general design, criteria, exceptions, waivers, variances, and special facilities. Includes topics such as frontage roads, park roads, work zones, pedestrian accommodations, and alternative intersections.
WEBLPTB -22 The LPTB -22 is a new standard sheet that depicts a low profile precast concrete barrier system that is 26” in height. The system is available for use in temporary work zone applications only.
WEBFor concrete and steel barrier, bid for “Portable Traffic Barrier” of the work category (Furnish and Install, Designated Source, Move, Stockpile, or Remove), shape (e.g., Single Slope, F-Shape, or Low Profile)
- [PDF]
From: Subject
WEBMay 20, 2021 · Provided additional clarification that Low Profile Concrete Barriers are permitted for use in work zone locations, where the posted speed limit is 45mph, or less. Updated the Concrete Traffic Barrier detail to properly …
TxDOT Specifications
WEBJul 23, 2003 · 1) Locations for permanent concrete traffic barrier must be shown on the plans. 2) The Class of concrete will be shown on the plans. 3) The permanent concrete traffic barrier must be installed in accordance with the details shown on the plans.
WEBFor concrete and steel barrier, bid for “Portable Traffic Barrier” of the work category (Furnish and Install, Designated Source, Move, Stockpile, or Remove), shape (e.g., Single Slope, F-Shape, or Low Profile) and Type (1, 2, 3, …
Skip to content