Culvert Rehabilitation A presentation by ms consultants, inc. engineers, architects, planners
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1 Culvert Rehabilitation A presentation by ms consultants, inc. engineers, architects, planners
2 McConnell Road Culvert Greensboro, North Carolina Fisher Park Circle Culvert Greensboro, North Carolina Shady Run Road Culvert Youngstown, Ohio
3 McConnell Road Culvert Greensboro, North Carolina Existing Conditions 7 x 4-6 rectangular section with 3-6 clay tile arched top. 8 concrete walls at both ends of culvert; grouted stone walls in remaining section Length = 54 ; Fill height = 4 ; Road width = 24 Bottom is concrete slab, concrete wing walls.
4 McConnell Road Culvert Greensboro, North Carolina Primary concern: 85% of grouted joints in arch top deteriorated. Several tiles missing or broken. Goal: Restore culvert integrity Prolong useful life.
5 McConnell Road Culvert Greensboro, North Carolina Structural Analysis Results: Based on Original Conditions, culvert capacity exceeded stresses by HS Design Truck. Based on deteriorating Existing Conditions, corrective measures recommended.
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7 McConnell Road Culvert Greensboro, North Carolina ALTERNATIVE #1 Place 3-4 of shotcrete on arch and walls. 13% reduction in cross-sectional area. Expected service life years. No roadway closure. Estimated construction cost $55,500.
8 McConnell Road Culvert Greensboro, North Carolina ALTERNATIVE #2 Install 8 thick concrete walls in front of existing walls at each end. Construct concrete column and beam bent at each stone wall insert aluminum arch on new walls and beams Fill remaining space with highflowing cementitious grout. 19% reduction in cross-sectional area. Expected service life 30 years. No roadway closure. Estimated construction cost $76,100.
9 McConnell Road Culvert Greensboro, North Carolina ALTERNATIVE #3 Remove and replace culvert. Expected service life 50 years. No impact on hydraulic capacity. Road closure required. Estimated construction cost $97,600.
10 McConnell Road Culvert Greensboro, North Carolina ms recommendation: Alternative #2, unless funds are not restricted and detour is not objectionable. The City of Greensboro selected Alternative #2.
11 McConnell Road Culvert Greensboro, North Carolina
12 McConnell Road Culvert Greensboro, North Carolina
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14 Fisher Park Circle Culvert Greensboro, North Carolina Culvert opening
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16 Fisher Park Circle Culvert Greensboro, North Carolina Existing Conditions 5 wide x 4 high stone box culvert (granite) Stone box section 54 length, transitions to 4 clay tile arch section for 452 length Average fill height = 3 ADT = 4,500; 2% Trucks
17 Fisher Park Circle Culvert Greensboro, North Carolina Primary concern: Numerous top granite slab are broken and dropped up to 8-10, and have 18 voids between some slabs. Goal: Restore culvert integrity Prolong useful life.
18 Fisher Park Circle Culvert Greensboro, North Carolina Local Concerns One of the City s oldest residential areas. Community desires no impacts to historical nature of the area. Absolutely no harm to Landmark Tree. City opinion is that the tree is self-supporting. Slabs under tree are in good condition.
19 Fisher Park Circle Culvert Greensboro, North Carolina Two Alternatives for rehabilitation considered: 1. Jacking the culvert roof and underpin. 2. Open cut 10 x 42 area and replace slabs with reinforced concrete slabs, either poured in place or precast. Precautions made to avoid tree and root system
20 Fisher Park Circle Culvert Greensboro, North Carolina ALTERNATIVE #1 - Underpin Considered a more short-term solution. Jacking would be more difficult construction. Confined space issues Structural members would reduce hydraulic capacity Use galva.nized steel to avoid corrosion Special attention to remaining voids would be needed. Roadway would be closed during construction. Estimated cost $36,000.
21 Fisher Park Circle Culvert Greensboro, North Carolina ALTERNATIVE #2 Replace Roof Slabs Considered a more long-term solution. Better structural stability. Eliminates confined space issues. No reduction in hydraulic capacity. Voids can be filled. Roadway would be closed during construction. Estimated cost $21,000.
22 Fisher Park Circle Culvert Greensboro, North Carolina The City of Greensboro selected Alternative 1 Underpin as there is less impact to surroundings; no risk to landmark tree.
23 Fisher Park Circle Culvert Greensboro, North Carolina
24 Fisher Park Circle Culvert Greensboro, North Carolina
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26 Shady Run Road Culvert Youngstown, Ohio EXISTING CONDITIONS 6 x 50 sandstone culvert with concrete slab top. Culvert had not been on inspection inventory. Partial collapse following heavy rain event. City of Youngstown requested ms consultants perform a detailed inspection for emergency repair plans.
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51 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
52 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
53 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
54 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
55 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
56 Shady Run Road Culvert Emergency Repairs - Youngstown, Ohio
57 Shady Run Road Culvert Youngstown, Ohio AS - BUILT Restored integrity of the culvert: Rebuilt catch basins to repair drainage problem Reconstructed wing walls, culvert walls and new top slab Constructed new concrete invert with cutoff wall and stabilized bottom stone Reconstructed outfall channel
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69 Thank you for your time. ms consultants, inc. engineers, architects, planners
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