Alabama DOT uses guardrails at bridge ends for protection. Judgments are made in the field about the need to remove fixed objects or provide barrier protection. Usually guardrail protection is used. … [Read more...] about Protection for bridge ends or other fixed objects in two-lane two-way operations
Barriers (Roads)
Protection for bridge ends or other fixed objects in two-lane two-way operations
Iowa DOT protects the off-end of bridges in its two-lane two-way operations work zones by temporarily placing the appropriate metal beam guardrail treatments. If a metal beam rail does not work, crews … [Read more...] about Protection for bridge ends or other fixed objects in two-lane two-way operations
Louisiana Department of Transportation and Development Standard Plans
These documents comprise the Standard Plans for construction in the state of Louisiana. It includes drawings for box culverts, catch basins and manholes, cattle guard, concrete retaining wall, … [Read more...] about Louisiana Department of Transportation and Development Standard Plans
Life-Cycle Costs and Work-Zone Equipment
Article discussing the costs associated with the use of concrete barriers as compared to portable water-filled barriers. … [Read more...] about Life-Cycle Costs and Work-Zone Equipment
Portable Traffic Barrier for Work Zones
A portable, positive construction zone barrier is described. The barrier is suitable for use at sites where work will take as little as several hours. It is constructed from used cars and thrie-beam … [Read more...] about Portable Traffic Barrier for Work Zones
A Truck-Mounted Portable Maintenance Barrier
A truck-mounted portable maintenance barrier is described. The barrier is designed to provide a reasonable degree of positive protection in short-duration work zones where it is not practical to use … [Read more...] about A Truck-Mounted Portable Maintenance Barrier