To Protect or not To Protect
Does the end of the MBGF end have to be flared?
No, it can be flared 25:1, but doesn’t have to.
On precast barrier how far must the lifting holes be from the end of the barrier?
7.5 FT
Is temporary seeding the least effective vegetative method for stabilization?
Yes
What does VIVDS stand for?
VIDEO IMAGING VEHICLE DETECTION SYSTEM
What is the minimum height for a sign on the side of the roadway?
7 FEET FROM EDGE OF TRAVEL LANE
What can cause the bolts on MBGF to loosen at the end of a project?
Weather
Can precast curb be used under a Thrie Beam?
Yes
How much is a potential violation found by TCEQ?
$25,000 per day per violation
Before a contractor starts drilling for a signal pole foundation, name one of the three entities to be contacted to determine if existing utility lines are in conflict?
ONE CALL, MUNICPALITIES, or TXDOT
What color of sign is used for destination/guidance?
Green background with white letters.
Name two of the different types of barrier discussed?
MBGF, Low Profile CTB, Portable and Permanent CTB, Cable Barrier, Bridge Rail and Temporary Steel Barrier.
Can you place washers on the face of MBGF?
No, bolts on posts are designed to pull through face of rail.
What item specifies seed mixtures and optimum seeding times for each district.
Item 164 - Seeding for Erosion Control - specifies the different type of seed mixtures and seeding times for each district. Item 164- 2024 spec.
What is the Item number for Highway Traffic Signals?
Item 680
What is the best tool to use to collect a sample when checking thermoplastic striping?
Metal plates/ metal reflective foil tape or metal duct tape. Regular duct tape will shrink with heat from thermoplastic markings.
What does MASH stand for?
Manual on Assessing Safety Hardware.
How many toe nails are required on a Rectangular wood post with a wood block out?
One, though most contractors use 2
True of False. Vegetation is needed to protect the soil from raindrop impacts.
True
Where would you find specific information about the type of traffic controllers used on a project?
GENERAL NOTES
How many sides does a stop sign have?
8-sides Octagon.
When grading for the guardrail terminal, what is the maximum slope allowed?
10:1or flatter
Is class B concrete allowed when making precast concrete barrier?
No Class H 3600 psi concrete is required. Section 421.4.2.2 - Table 8 - 2024 Spec.
Is fertilizer a pay item in the plan set?
No, unless specified in the plans
True/False – The two types of electrical services that can be installed on a TxDOT project are Pedestal or Pole mounted.
True
Name one of the three requirements checked when inspecting thermoplastic striping?
THICKNESS, WIDTH, or REFLECTIVITY