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Water/Wastewater Projects
CON/SPAN O-Series Replaces Deteriorating Bridge  Read More

Maple Drive

Maple Drive
Griffin, Georgia - The City of Griffin needed to replace a deteriorating bridge on Maple Drive. Due to a high volume of school bus traffic and a potentially lengthy detour, the project needed to be completed over the summer while school was not in session. Since the lead time for a conventional bridge was outside of the allowable time for completion, a 31’ x 7'-3” CON/SPAN® O-Series® Bridge System, 42’ in length, was selected as the best solution for its ability to meet the deadline in a cost effective manner.

CDS System Screens, Separates and Traps Debris from Stormwater Runoff  Read More

Humboldt River Greenway

Humboldt River Greenway
Los Angeles, California - The Humboldt River Greenway project became one of many Bureau of Engineering projects targeted for change. To address the stormwater runoff conditions that plagued the small one-acre park, the City of Los Angeles selected a CDS hydrodynamic separation system as the best solution for its ability to pre-treat runoff. The CDS system screens, separates and traps debris, sediment, oil and grease from the stormwater runoff before it reaches the Los Angeles River. 

DuroMaxx Deemed Best Replacement  Read More

U.S. Route 1 - Warren, Maine Culvert Replacement

US Route 1 - Warren, Maine Culvert Replacement
Prock Marine Rockland, Maine - During a general inspection in the Town of Warren, the Maine Department of Transportation (MEDOT) determined that a large culvert under U.S. Route 1 was in need of replacement. Selected for its competitive price, shorter lead time and light weight, DuroMaxx® SRPE was deemed the best solution to replace approximately half of the existing culvert structure that ran directly under the highway. 

Continental Provides Safe Crossing for Boy Scouts  Read More

Boy Scout Camp Tahquitz

Boy Scout Camp Tahquitz - Highway 38
Angelus Oaks, California - Owned by the Long Beach Area Council Boy Scouts of America, the 640-acre Camp Tahquitz annually serves approximately 16,000 Scouts. Since Highway 38 bisects the camp, Scouts were required to cross the dangerously busy highway in order to participate in activities located throughout the camp. After four years of planning and fundraising, the camp raised enough money to install a 100' x 8' Connector®-style, Continental® truss bridge. Exhibiting an extremely generous spirit, two firms, Prime Source Consulting and Moffatt & Nichol donated design time while the contractor, Powell Constructors, donated its time and labor during installation of the bridge.

Liner Plate Reinforces Original Triple Barrel Culvert  Read More

SR 0006 Culvert Rehab

SR 0006 Culvert Rehab
Clarks Summit, Pennsylvania - Engineers in the Douglassville, PA office of STV Inc. noticed a potential issue in inspection videos that looked like the pipe structures running under a Pennsylvania DOT (PennDOT) arterial highway had major corrosion and structural issues. The overall project consisted of nearly 8 miles of four-lane divided arterial roadway of SR 6 constructed in the early 1950’s. As a solution, it was decided that the existing triple barrel culvert be reinforced with 2-Flange Tunnel Liner Plate with the diameter manufactured to maximize the hydraulic opening, while also providing adequate space between the old pipe and the liner for constructability.

Jellyfish Filters Clean Water Unable to be Isolated  Read More

Maine Mall Road Stormwater Improvements
South Portland, Maine - Since the bodies of water within the watershed area of Maine Mall Road have been unsuccessful at meeting the required State Water Quality Standards, a new watershed management plan was developed. Part of the plan included the use of Jellyfish Filters in upstream areas that could not be isolated for treatment. The Jellyfish Filter is an engineered stormwater treatment technology featuring pretreatment and membrane filtration in a compact system.

HEL-COR and ULTRA FLO Create Storm Drainage System  Read More

Paseo Del Norte / I-25 Interchange

Paseo Del Norte / I-25 Interchange
Albuquerque, New Mexico - The Paseo Del Norte / I-25 Interchange Reconstruction project focused predominately on improving traffic flow for the I-25 corridor on the north side of the Albuquerque Metropolitan area. As part of the project, Contech Engineered Solutions worked closely with the design-build team to design a storm drainage system beneath the new interchange. The system included polymeric HEL-COR® corrugated metal pipe (CMP) and one of the most hydraulically efficient storm sewer systems available – ALT2 ULTRA FLO® CMP. Diameters ranged from 24-in to 108-in and gages ranged from 16 to 10 gage.

  
MULTI-PLATE Replaces Undersized Culvert  Read More

Lake Creek

Lake Creek
Boulder, Utah - Although an existing, 58 year old culvert located in a remote portion of the Dixie National Forest (DNF) was still in good condition, it was undersized and needed to be replaced. Contech Engineered Solutions worked with the project engineer at DNF to provide an economical and more hydraulically efficient fish passage for the Lake Creek crossing. A 8' x 3'-4" MULTI-PLATE® arch structure, 56' in length, was selected as the best replacement solution. 

CON/SPAN O-Series Replaces Culvert Damaged by Flooding  Read More

East Valley Water District

East Valley Water District - Plant 134 Entrance
Highlands, California - During a large rain event, debris built up at the vertical piers of a triple cell concrete box culvert damaging and blocking the culvert. The waters of Cook Creek continued to rise causing flooding and mudslides into an adjacent housing community. Identified as a major safety concern, the bridge was replaced with a 33' x 9.04' CON/SPAN® O-Series® Bridge System, 32' in length, which was selected as the best option for its single span and cost effectiveness.

A-Jacks Dissipate Energy, Protect Against Scour and Erosion  Read More

El Paso IH-10

El Paso IH-10
Presidio, Texas - While completing routine highway maintenance in Presidio, the Texas Department of Transportation (TXDOT) discovered that during high intensity storm events, the water flowing off a bridge was causing scour and erosion issues around the bridge piers and abutments. As a solution, a total of 245 units of 48-in A-Jacks® were selected to provide energy dissipation and protection against scour and erosion. In addition, 24-in gabion mattresses were utilized at the top of the bridge abutment for its ability to dissipate the energy flowing off the roadway.


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