BURIED STRUCTURES - RANGING IN WIDTH FROM 6' to 100'
Application Types
Precast or CIP ARCH CULVERTS
Arch culverts offer both the open-area benefits of a rectangular box culvert as well as the structural load-carrying capacity of an arch structure. The arch shape provides the most efficient and cost-effective structural cross section, while the vertical sidewalls of the arch-box shape
result in greater open area for increased hydraulic clearance. The three-sided structure can be set on strip foundations to avoid disturbing wetlands and streams. With a variety of span and rise combinations from 6 feet to 60 feet, the SPECS three-sided arch structure offers speed of construction, environmental avoidance, cost savings compared to conventional box or bridge construction and minimized long-term maintenance.
PRECAST OR CIP REINFORCED CONCRETE BOX CULVERTS
SPECS has a number of different 3- and 4-sided box culvert options that we can offer depending on individual site conditions.
4’ to 14’ spans, up to 14’ heights
Skewed ends for channel alignments, radius turns or angled turns
Accommodates lateral pipe penetrations & accesses
Cooper E-80, FAA, and AASHTO designs available
Meets ASTM C1433, ASTM C1577, & ACI 318
4’ to 12’ spans, up to 12’ heights
Skewed ends for channel alignments, radius turns or angled turns
Faster installation using vertical gravity joint system
Accommodates lateral pipe penetrations & accesses
Cooper E-80, FAA, and AASHTO designs available
Meets ASTM C1433, ASTM C1577, & ACI 318
4’ to 24’ spans, up to 8’ heights
Skewed ends for channel alignments, radius turns or angled turns
Longer lay-lengths, up to 16’.
Faster installation using vertical gravity joint system
Accommodates lateral pipe penetrations & accesses
Cooper E-80, FAA, AASHTO, ACI 318 designs available
4’ to 24’ spans, up to 16’ heights
Skewed ends for radius turns or roadway skews
Longer lay-lengths, up to 16’
Faster installation using vertical gravity joint system
Accommodates lateral pipe penetrations & accesses
Cooper E-80, FAA, AASHTO, ACI 318 designs available
The Type I precast box culverts listed above can be set on top of strip footings to further reduce impact.
CORRUGATED METAL STRUCTURES
Corrugated metal structures are a cost effective durable buried structure solution. They are shipped to the jobsite in bundles of stacked metal plates, which are easily removed with light construction equipment. Different corrugation profiles allow spans ranging from 6 ft to 80 ft. The deep corrugations offer nine times the stiffness of conventional structural plate, allowing it to withstand heavy loading. There are multiple different shape options or a shape can be designed specifically for the site needs.
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