Grading, Paving, Drainage & Structure - SR 1158 - Columbus

FOUNDATION RECOMMENDATIONS
PROJECT: BP6.R013 DESCRIPTION: BRIDGE #325 OVER MONIE
TIP NO.: SWAMP ON SR 1158 (CHAIR FACTORY ROAD)
COUNTY: COLUMBUS BETWEEN SR 1141 AND NC 905
STATION: 27+79.50 -L-
SEAL
INITIALS DATE
DESIGN: KRP 6/19/2024
CHECKED: AAN 7/5/2024
FINAL: 031022
REVISED: PA 1/23/2026
SIGNATURE
FOUNDATION FACTORED
STATION MISCELLANEOUS DETAILS
TYPE RESISTANCE
Bottom of Cap Elevation = 43.50 ft
Point of Fixity Elev. = 26 ft
Cap on
END BENT 27+30.81 Tip No Higher Than Elev. = 20 ft
HP 12 x 53 135 kips/pile
1 -L- Estimated Pile Length = 110 ft
Steel Piles
Number of Piles = 7
Pile Spacing =6'-0"
Bottom of Cap Elevation = 42.80 ft
Point of Fixity Elev. = 18 ft
Cap on
BENT 27+77.00 Tip No Higher Than Elev. = 14 ft
HP 14 x 73 235 kips/pile
1 -L- Estimated Pile Length = 115 ft
Steel Piles
Number of Piles = 8
Pile Spacing =4'-6"
Bottom of Cap Elevation = 43.42 ft
Point of Fixity Elev. = 26 ft
28+28.19 Cap on
END BENT Tip No Higher Than Elev. = 21.0 ft
-L- HP 12 x 53 135 kips/pile
2 Estimated Pile Length = 95 ft
Steel Piles
Number of Piles = 7
Pile Spacing =6'-0"
COMMENTS & NOTES (See Following Page)

PROJECT: BP6.R013 TIP: COUNTY: COLUMBUS
DESCRIPTION: BRIDGE#325OVER MONIE SWAMP ON SR 1158 (CHAIR FACTORY RD.)
FOUNDATION RECOMMENDATION NOTE ON PLANS:
1. FOR PILES, SEE SECTION 450 OF THE STANDARD SPECIFICATIONS.
2. IT HAS BEEN ESTIMATED THAT A HAMMER WITH AN EQUIVALENT RATED ENERGY IN
THE RANGE OF 31,000 TO 45,000 FT-LBS PER BLOW WILL BE REQUIRED TO DRIVE PILES
AT END BENTS NO. 1 AND 2, AND INTERIOR BENT NO. 1. THIS ESTIMATED ENERGY RANGE
DOES NOT RELEASE THE CONTRACTOR FROM PROVIDING DRIVING EQUIPMENT IN
ACCORDANCE WITH SUBARTICLE 450-3(D)(2) OF THE STANDARD SPECIFICATIONS.
FOUNDATION RECOMMENDATION COMMENTS:
1. USE 1.5 : 1 (H:V) END BENT SLOPES WITH CLASS II RIP-RAP SLOPE PROTECTION.
2. USE TYPE 1 BRIDGE APPROACH FILLS, SEE STANDARD DRAWING 423.01 OF THE
ROADWAY STANDARD DRAWINGS (JANUARY 2024).
3. A WAITING PERIOD IS NOT REQUIRED PRIOR TO THE CONSTRUCTION OF END BENT NO.1
AND END BENT NO.2.
4. THE MAXIMUM AXIAL LOAD FOR END BENT NO. 1 AND END BENT NO.2 IS 135 KIPS PER
PILE, AND BENT NO.1 IS 235 KIPS PER PILE.
5. DRIVE PILES AT END BENTS 1 AND 2 TO A REQUIRED DRIVING RESISTANCE OF 195 KIPS
PER PILE RESPECTIVELY. DRIVE PILES AT BENT NO.1 TO A REQUIRED DRIVING
RESISTANCE OF 340 KIPS PER PILE. THIS REQUIRED DRIVING RESISTINCE INCLUDES
ADDITIONAL RESISTANCE FOR SCOUR.
6. USE VERTICAL PLIES AT THE END BENTS AND INTERIOR BENT ACCORDING TO THE
STRUCTURAL PLANS.
7. STEEL PILES AT END BENTS AND INTERIOR BENT SHOULD BE PROTECTED FROM
CORROSION ACCORDINGLY TO THE STRUCTURAL DESIGN MANUAL
8. THE DESIGN SCOUR ELEVATIONS AT END BENT NO. 1 AND END BENT NO.2 IS
ELEVATIONS 41.5 FT AND 39.2 FT RESPECTIVELY. THE DESIGN SCOUR ELEVATION AT
BENT NO.1 IS 30.9 FT.
2

SUMMARY OF PILE INFORMATION/INSTALLATION
(Blank entries indicate item is not applicable to structure)
Driven Piles Predrilling for Piles ** Drilled-In Piles
End Bent / Bent No, Number Factored Pile Cut-Off Estimated Scour
Minimum Predrilling Pile Pile Pile
Pile(s) #(-#) of Resistance (Top of Pile) Pile Length Critical Required Driving Pile Predrilling Maximum
Pile Tip Elevation Excavation Excavation Excavation
(e.g., "Bent 1, Piles per Pile Elevation per Pile Elevation Resistance (RDR)* Redrives Length Predrilling
(Tip No Higher Than) (Elevation (Bottom of Hole) Not In Soil In Soil
Piles 1-5") per Line KIPS FT FT FT per pile Quantity per Pile Diameter
Elevation Not To Predrill Below) Elevation per Pile per Pile
KIPS EACH LIN FT INCHES
FT FT FT LIN FT LIN FT
End Bent 1, Piles 1-7 7 135 44.50 110 39.50 20.00 195
Bent 1, Piles 1-8 8 235 43.80 115 28.90 14.00 340
End Bent 2, Piles 1-7 7 135 44.42 95 37.20 21.00 195
TOTAL QUANTITY:
Factored Resistance +Factored Drag Load + Factored Dead Load
*RDR= +Nominal Drag Load Resistance+ Nominal Resistance from Scourable Material
Dynamic Resistance Factor
**Predrilling for Piles is required for end bents/bents with a predrilling length and at the Contractor's option for end bents/bents with predrilling information but no predrilling length.
PILE DESIGN INFORMATION SUMMARY OF DPT/PILE ORDER LENGTHS
(Blank entries indicate item is not applicable to structure) (Blank entries indicate item is not applicable to structure)
Dynamic Pile Testing (DPT) Pile Order Lengths for Concrete Piles
Factored Factored Factored Nominal Nominal
End Bent / Bent No, Axial Drag Dead Dynamic Drag Scour
DPT DPT
Pile(s) #(-#) Load Load Load * Resistance Resistance Resistance Pile Order
End Bent / Bent No Test Pile Testing End Bent / Bent No
(e.g., "Bent 1, Piles 1-5") per Pile per Pile per Pile Factor per Pile per Pile Length Basis*
(e.g., "Bent 1 - Bent 3") Length Quantity (e.g., "Bent 1 - Bent 3")
KIPS KIPS KIPS KIPS KIPS EST or DPT
FT EACH
End Bent 1, Piles 1-7 135 0.70 2.5 End Bent 1 110 1
Bent 1, Piles 1-8 235 0.70 3.5 Bent 1 115 1
End Bent 2, Piles 1-7 135 0.70 3.5 End Bent 2 95 1
*Factored Dead Load is factored weight of pile above the ground line. *EST = Pile order lengths from estimated pile
TOTAL QUANTITY: 3 lengths; DPT = Pile order lengths based on
Dynamic Pile Testing. For groups of end
bents/bents with pile order lengths based on
DPT testing, the first end bent/bent no. listed
for each group is the representative end
bent/bent with the DPT. `
PROJECT NO.BP6.R013 (BRIDGE #325)
COLUMBUS COUNTY
STATION: 27+79.50 -L-
NOTES: STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
1. The Pile Foundation Tables are based on the bridge substructure design and foundation recommendations sealed by a North Carolina Professional Engineer (Andrew A. Nash, #031022) on 01-27-2026. RALEIGH
2. Total Pile Driving Equipment Setup quantity (not shown in Pile Foundation Tables) equals the number of driven piles, i.e., the number of piles with a Required Driving Resistance.
PILE
3. The Engineer may adjust the quantity for DPT Testing and Pipe Pile Plates when necessary. 031022
FOUNDATION
TABLES
SIGNATURE DATE SHEET NO.
REVISIONS
DOCUMENT NOT CONSIDERED NO. BY: DATE: NO. BY: DATE: TOTAL
FINAL UNLESS ALL 1 3 SHEETS
SIGNATURES COMPLETED 2 4