2j-PMWSP HQ and VC Culvert Replace-Phasing and Sections.pdf
PDF 4 MB Posted
- Solicitation number
- RFP 171 210000002617 2
- Issued by
- Presque Isle County, Oden CDP, Michigan
About this file
This is a phasing and sections document for a culvert replacement project at Porcupine Mountains Wilderness State Park Headquarters and Visitor Center entrance road in Michigan. The project involves replacing an existing 4-foot diameter by 120-foot long corrugated metal pipe (CMP) culvert with a new 7-foot diameter by 120-foot long CMP culvert, positioned approximately 21 feet east of the existing culvert centerline. The work is organized into six phases: Phase 1 establishes a temporary 24-foot wide run-around traffic lane on the south side of the culvert embankment to maintain access during construction; Phases 2a and 2b involve demolition of the outlet half of the existing culvert and excavation of the outlet half of the proposed culvert location; Phases 3a and 3b include removal of the outlet half of the existing culvert with open channel creek flow and installation of the outlet 60 feet of the proposed culvert; Phases 4a and 4b cover demolition and excavation of the inlet half of the existing culvert; Phases 5a and 5b include removal of the inlet half of the existing culvert and installation of the inlet 60 feet of the proposed culvert with partial embankment construction; and Phase 6 represents completion of the full proposed culvert, culvert embankment, and roadway embankment.
The project must account for three underground utilities within the corridor: phone utility offset 1 foot from the asphalt edge at 24-36 inches depth, fiber optic utility offset 5 feet from the asphalt edge at 24-36 inches depth, and electric utility at an approximate location with depth to be determined. Erosion and sediment control measures include silt fence installation around excavation perimeters and consideration of high-velocity mulch blanket application on run-around embankment slopes. A temporary 12-inch diameter by 100-foot long CMP culvert or alternative flow protection is required to manage ditch flows during construction. The phased approach allows for sequential demolition and construction while maintaining creek flow conditions and site access throughout the project duration.
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Text version
cadeaue Callout Ex. 4' diameter x 120' long corrugated metal pipe culvert shown as shaded red rectangle.
Culvert length shown to scale cadeaue Text Box Porcupine Mountains Wilderness State Park Headquarters and Visitor Center Culvert replacement Existing site plan cadeaue Rectangle cadeaue Line cadeaue Line cadeaue Text Box Existing Cross section - Cross section cut at red line.
cadeaue Line cadeaue Line cadeaue Line cadeaue Line cadeaue Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
Fiber optic utility (orange), offset 5' from edge of asphalt, 24" to 36" depth
Electric utility (magenta), location shown approximate, depth not yet known.
Text Box Porcupine Mountains Wilderness State Park HQ & VC Entrance Road - Culvert replacement
Phase 1 - Run around site plan
Line cadeaue Callout Construct a 24' wide x approx. 150' (along centerline) temporary traffic lane on south (inlet) side of culvert embankment. Provide a 16' wide driving lane and two 4' shoulders for placing construction barrels.
See Phase 1 - Run around cross section.
Consider applying high velocity mulch blanket on run around embankment slopes during construction / use of run around.
Ex. 4' diameter x 120' long corrugated metal pipe culvert.
Shown to scale cadeaue Callout Proposed 7' diameter x 120' long corrugated metal pipe culvert.
Located center of prop. culvert approx. 21' east of centerline of ex. culvert.
Proposed culvert is not part of phase 1 but shown for positioning within run around.
cadeaue Line cadeaue Callout Either provide a temporary 12" diameter x 100' long CMP culvert to carry ditch flows or provide flow protection to edge of run around embankment.
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CadeauE
Underground utility corridor (Electric, telephone, and fiber optic).
Porcupine Mountains Wilderness State Park
Phase 2a and 2b: 2a - Demolish outlet side of existing culvert. 2b - Excavate outlet side of proposed culvert.
cadeaue Callout Remove outlet half (60') of existing 4' diameter x 120' long CMP culvert cadeaue Callout Excavate to depths and limits shown on cross section 2b for proposed 7' diameter x 120' long corrugated metal pipe culvert. Note: Excavation will prep. outlet 1/2 (60') of prop. culvert length.
Located center of prop. culvert approx. 21' east of centerline of ex. culvert.
Complete construction of the proposed culvert is not part of phase 2b. The blue cross section line is shown at the centerline of the proposed culvert.
cadeaue Line cadeaue Line cadeaue Line cadeaue Text Box Cross section 2b cadeaue Line cadeaue Line cadeaue Text Box Cross section 2a cadeaue Rectangle cadeaue Rectangle cadeaue Polygon cadeaue Callout Demolish existing culvert and excavate existing roadway embankment at outlet half of proposed culvert location.
cadeaue Rectangle cadeaue Line cadeaue Line cadeaue Line cadeaue Line cadeaue Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
Fiber optic utility (orange), offset 5' from edge of asphalt, 24" to 36" depth
Electric utility (magenta), location shown approximate, depth not yet known.
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Porcupine Mountains Wilderness State Park
Phase 3a and 3b: 3a - Demolished outlet side of existing culvert. 3b - Construct outlet side of proposed culvert.
cadeaue Callout Removed outlet half (60') of existing 4' diameter x 120' long CMP culvert and roadway embankment.
Install silt fence around perimeter of excavation (both sides of Creek).
Leave creek as open channel flow through removed portion of culvert.
cadeaue Callout Construct 60' of prop. 7' diameter x 120' long corrugated metal pipe culvert.
Construction of the proposed culvert is shown on cross section 3b. The culvert is shown as a blue shaded rectangle. The blue cross section line is shown at the centerline of the proposed culvert.
The centerline of the proposed culvert is located 21' east of the centerline of the ex. culvert.
cadeaue Line cadeaue Line cadeaue Line cadeaue Text Box Cross section 3b cadeaue Line cadeaue Line cadeaue Text Box Cross section 3a cadeaue Rectangle cadeaue Rectangle cadeaue Polygon cadeaue Callout Install Outlet half (60') of prop. culvert. Construct a portion of the prop. embankment over the outlet half of proposed culvert location. Do not construct embankment over ex. culvert location. Leave as open channel flow.
cadeaue Line cadeaue Line cadeaue Line cadeaue Line cadeaue Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
Fiber optic utility (orange), offset 5' from edge of asphalt, 24" to 36" depth
Electric utility (magenta), location shown approximate, depth not yet known.
cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue
CadeauE Polygon
Porcupine Mountains Wilderness State Park
Phase 4a and 4b: 4a - Demolish inlet side of existing culvert. 4b - Excavatet inlet side of proposed culvert.
cadeaue Callout Phase 3a portion of work - No new work in Phase 4b.
cadeaue Line cadeaue Line cadeaue Text Box Cross section 4b cadeaue Line cadeaue Line cadeaue Text Box Cross section 4a cadeaue Rectangle cadeaue Rectangle cadeaue Polygon cadeaue Callout Phase 3b portion of work - No new work in Phase 4b.
cadeaue Line cadeaue Line cadeaue Line cadeaue Line cadeaue Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
Fiber optic utility (orange), offset 5' from edge of asphalt, 24" to 36" depth
Electric utility (magenta), location shown approximate, depth not yet known.
cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue cadeaue Sticky Note Unmarked set by cadeaue
CadeauE Polygon
CadeauE Rectangle
CadeauE Callout Remove inlet half (60') of existing 4' diameter x 120' long CMP culvert.
CadeauE Callout Excavate to depths and limits shown on cross section 4b for proposed 7' diameter x 120' long corrugated metal pipe culvert. Note: Excavation will prep. inlet half (60') of prop. culvert length.
Locate center of prop. culvert approx. 21' east of the centerline of the existing culvert.
Complete construction of the of the proposed culvert is not part of Phase 4b, this plan and cross section show excavation only. The blue cross section line is shown at the centerline of the proposed culvert. The blue shaded rectangle shows the prop. culvert.
CadeauE Polygon
CadeauE Callout Salvage run around surfacing and run around embankment fill.
Demolish ex. culvert embankment and demolish ex. culvert. Excavate to limits shown in cross sections 4a and 4b.
Removal of existing culvert should result in open channel flow conditions through the corridor previously occupied by the ex. culvert.
Porcupine Mountains Wilderness State Park HQ & VC Entrance Road - Culvert replacement
Phase 5a and 5b: 5a - Demolished inlet side of existing culvert. 5b- Constructed inlet half of proposed culvert and partial construction of proposed culvert embankment.
CadeauE Rectangle
CadeauE Line
CadeauE Line
CadeauE Line
CadeauE Line
CadeauE Line
CadeauE Text Box Cross section 5b
CadeauE Text Box Cross section 5a
CadeauE Rectangle
CadeauE Polygon
CadeauE Callout Removed 4' diameter x 120' long CMP culvert and roadway embankment.
Install silt fence around perimeter of excavation (both sides of creek).
Leave creek as open channel flow during completion of proposed culvert.
CadeauE Polygon
CadeauE Callout Install inlet half (60') of proposed culvert. Construct a portion of the prop. embankment over the outlet half of proposed culvert location.
Maintain open flow conditions through existing culvert footprint until proposed culvert construction is complete.
CadeauE Line
CadeauE Line
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CadeauE Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
Porcupine Mountains Wilderness State Park HQ & VC Entrance Road - Culvert replacement
Phase 6: Completed construction of proposed culvert, culvert embankment, and roadway embankment .
CadeauE Line
CadeauE Line
CadeauE Line
CadeauE Text Box Cross section 6
CadeauE Rectangle
CadeauE Line
CadeauE Line
CadeauE Line
CadeauE Callout Underground utilities:
Ex. Phone utility (orange), offset 1' from edge of asphalt, 24" to 36" depth
File details come from the government source that posted it. Updated .