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NDOT Alternative Delivery Best Asphalt Paving Practices SWANA Sessions
and Rapid Build Program (2:30 p.m.)
(1:30 p.m.) Chad Collier, Collier Engineering Recent Waste Tire Updates and
Harrison Turner, LDA This session will involve best practice Legislation (9 a.m.)
The NDOT Alternative Delivery and Rapid Build discussions related to asphalt. Jeremy Hooper, Environmental Consultant 3,
Program is a procurement and construction Tennessee Department of Environment and
program implemented through a joint effort by Create Entire City\County Conservation
the Nashville Department of Transportation and Libraries of Inlets and New legislation recently was signed into law
Multi-Modal Infrastructure (NDOT) and the LDA Headwalls Parametrically For by Governor Lee which allows counties to use
Engineering Team. This program originated from Use in 3D Storm Sewer Design revenue from the tire pre-disposal fee for
a goal stated by Mayor Cooper in his annual (2:30 p.m.) disposal of waste tires. This presentation will
State of Metro Address for NDOT to construct discuss the new legislation and recent updates
sidewalks 50% faster and 20% less expensive Danny Oliver, Southern Instruments and in Tennessee’s waste tire management.
than the previous fiscal year. With the program’s Software, LLC
assistance, NDOT and the LDA Engineering team Precision 3D Hydrology, a program developed Solid Waste Disposal:
were able to achieve Mayor Cooper’s goal by since 2014 by Carlson Software, contains Regulatory Changes, Disposal
constructing sidewalks 58% faster and 26% a “starter” library of inlets and headwalls Trends and More (10 a.m.)
less expensive in the first year. covering most categories. In the case of inlets,
The NDOT Alternative Delivery and Rapid Build there are examples used in various states that Nick Lytle, Permits Manager, Tennessee
Department of Environment and Conservation
Program emphasizes streamlining the process cover the three major types (grates, open throat
for delivering safe pedestrian facilities. This curb inlets, and “combo” inlets consisting of Division of Solid Waste
process begins with project selection. It is both grates and open throat elements). From Update of new and potential upcoming
understood that not all projects are possible this starter library, the new parametric design regulatory changes in relation to solid waste
to be built using the Alternative Delivery and features of Precision 3D Hydrology allow for disposal in the State of Tennessee; along with
Rapid Build Program, but projects with minimal modification to conform to specific dimensions an overview of disposal trends, State solid
storm, utility, or right-of-way conflicts are good and inlet types used anywhere in the world. waste capacity, and hot topics including special
candidates for the process. Using GIS mapping User-modified structures then can be saved into waste approvals and ending post-closure
technology and engineering judgement, the libraries associated with particular city and requirements for legacy landfills.
LDA team identified several projects as solid regional jurisdictions or DOT agencies.
program candidates. These projects are in areas In addition to the storage of new 3D solid TDOT Beautification Updates
identified as having a need for a pedestrian objects, the hydraulic parameters associated (1:30 p.m.)
facility. This program also has been used to with inlets and headwalls can be stored based Mike McClanahan, Transportation Manager,
quickly address areas of known pedestrian on user input or program calculation. In the Tennessee Department of Transportation
accidents, with facilities being constructed case of headwalls, the HDS5 inlet coefficients
within a few months of known incidents. (K, M, C and Y) are defined for each headwall, This presentation is a brief update on litter
The construction of the project is executed and the HY-8 parameters (a through f) are prevention programs managed by TDOT’s
Highway Beautification Office. Programs
using pre-qualified, on-call contractors. This likewise defined for each dimensionally altered discussed will include: Litter Grant, Adopt-A-
partnership allows the LDA engineering team to headwall. Similarly, for inlet grates as an Highway and the Nobody Trashes Tennessee
work closely with the contractors in the field to example, the weir and orifice coefficients are litter prevention campaign.
help mitigate issues during construction. This saved distinctly for each redefined grate inlet,
partnership also allows for the LDA team to along with the 3D solid object used in 3D Solid Waste -
provide the contractor with construction-ready design. Roundtable Discussion
plans and standard details, reducing the design Designing in Precision 3D Hydrology can fluidly
timeframe and budget. Through this program, link to Bentley Microstation and AutoCad (2:30 p.m.)
NDOT and the LDA team have been able to and Intellicad through a process called Eddie Anderson, Stringfellow
complete projects in as little as two weeks from Dynamiccad. The 3D design draws back in CAD This will be an informal open discussion
project identification to finished construction, simultaneous to the design work conducted in of topics to include updates on equipment
with an average total project timeframe of the 3D environment, utilizing the preset styles availability and impacts of COVID on the
approximately eight weeks. associated with the plan and profile. The industry.
The LDA engineering team currently is managing 3D design environment is very effective for
a program that exceeded the expectations and viewing water gutter spread in roads, and for
goals stated by Mayor Cooper with the use of using transparency to study pipe conflicts and
advanced GIS data implementation, sound collisions.
engineering judgement, and efficient project
delivery.

8 TPW Conference 2022