Rebar Alternatives Save Big $$$

Contact Us

Fill out the form below to request more information from our Bladensburg location.

"*" indicates required fields

Consent*
Hidden
This field is for validation purposes and should be left unchanged.

View our privacy policy

MD: Bladensburg (HQ)

(301) 927-8300

4700 Annapolis Road, Bladensburg, MD 20710, USA

Mon-Fri 6:30AM to 4:00PM Saturday 6:30AM to 12:00PM Sunday CLOSED

Get In Touch with someone at MD: Bladensburg (HQ)
(301) 927-8300

"*" indicates required fields

Accepted file types: pdf, txt, Max. file size: 2 MB.
Hidden
Response time within 4 hours

Roadway in PG County Solves Stormwater Problem Instead of Creating One

Aaron Fisher | January 22, 2022

The PaveDrain permeable pavement system is a next generation permeable surface. The presence of open joints in the system leads to higher water infiltration rates, and reduced maintenance compared to other permeable pavements.

The Site

A 2,350 ft2 PaveDrain system was installed at the intersection of 40th Avenue and Newark Road in the right-of way. This intersection is property of the Town of Colmar Manor (MD). This area is part of the Anacostia River basin, which is subject to a TMDL (Total Maximum Daily Limit) for TSS (total suspended solids).

Stormwater Permitting

Permit drawings show that this stormwater management structure will receive drainage from 8,705 ft2 —a run-on ratio of 2.7:1. The site was excavated to ~4 feet below grade. The base was then placed from the bottom: 12” clean sand, 24” of #2 stone, 4” of #57 stone, with a PaveDrain surface (Figure 2). A mid-drain was installed in the system, which is converted to an overdrain at its outfall within the manhole. Details on the site are provided in Table 1.

Table 1. Stormwater BMP Summary Table as per Approved Permit

SWM Area (ft2) Drainage Area (ft2) Run-On Ratio Target PE (in) Target Vol (ft3) Design Vol (ft3) using ESD practices Max ESD Vol (ESD max) (ft3) RCN
2,350 8,705 2.7:1 1.00 214 376 376 89

Soil Characterization

After excavation was completed, three soil samples were taken (Figure 3) to characterize the soil into which the water will infiltrate. The three samples showed a variable soil base, characterized as 1) Gray SILT [ML] {USDA – LOAM} 2) Brown silty SAND [SM] {USDA – SAND}, and 3) Gray lean CLAY [CL] {USDA – SILTY CLAY LOAM}. These samples fall into Hydrologic Soil Groups (HSG) A, B, and D, respectively. This agrees with permitting, as per Prince George’s County Department of Permitting, Inspection and Enforcement, which classified the soil per the lowest HSG of D.

Sensoring

The installation was completed in April 2021. After construction was completed, an INFIL-Tracker system (in-situ water-level monitoring) from P4 Infrastructure, Inc. was placed vertically in the base to collect the water level point several times a minute, with data reported to the cloud every 10 minutes (Figure 3). A rainfall and environmental monitoring system was also placed nearby to get a granular report of rainfall that would match to the data collected by the water sensor. The sensors are connected via cellular signal, and regularly report measurements to the cloud.

Performance

20″+ of stormwater was captured and exfiltrated through a stone and sand media permeable pavement gallery in each of three rain events in September through November (see image below). Sure looks like a stormwater infiltration device to me. Data doesn’t lie.

No alternative text description for this image

Monitoring is ongoing at this site. We have partnered with the Dr. Allen Davis at  The University of Maryland to further study this installation

This is not an isolated example either: Cudahy, WI was able to save 91% while complying with their stormwater permit.


Interested in learning more and getting a PDH: Click Here

VP of Business DevelopmentAaron Fisher

Phone
Location
MD: Bladensburg (HQ)
Languages
English

Latest News

Ernest Maier and Gomoljak Counter Price Sheet

Ernest Maier and Gomoljak Counter Price Sheet

Pricing accurate as of 10/3/2022 and valid for Annapolis, Bladensburg, and Gaithersburg locations (contact us for bulk pricing and delivery): […]

Read More
Answering 6 FAQs About Fiberglass Rebar

Answering 6 FAQs About Fiberglass Rebar

Demand for glass fiber reinforced polymers (GFRP), aka fiberglass rebar, has been growing as an innovation over steel rebar and […]

Read More
Infrastructure Under Attack

Infrastructure Under Attack

With the long awaited passage of the Bipartisan Infrastructure Law (Infrastructure Investment and Jobs Act), America is poised to make […]

Read More
Is Fiberglass Rebar More Affordable Than Steel?

Is Fiberglass Rebar More Affordable Than Steel?

Research that studied the efficacy of Glass Fiber Reinforced Polymer (GFRP) confirmed that GFRP is the solution to strengthened concrete […]

Read More
Winner of the 2022 Top Workplaces Award for Employee Well-Being

Winner of the 2022 Top Workplaces Award for Employee Well-Being

  Bladensburg MD, October 19, 2022 – Ernest Maier, a Mid-Atlantic based construction material manufacturer and distributor, has been recognized […]

Read More