Prior Bid Questions.pdf
PDF 2 MB Posted
- Solicitation number
- PE-66400-NONST-2027-000000017
- Issued by
- Barrow County, Georgia
About this file
This is a Prior Bid Questions document issued by Gordon County, Georgia, addressing bidder inquiries related to a bridge repair project on Slate Mine Road at Pine Log Creek. The project encompasses concrete spall repair, bridge painting, rip-rap placement, deck joint cleaning and resealing, bearing realignment, anchor bolt repair, and bridge raising operations. The scope includes raising an existing bridge by the minimum amount necessary to remove and reset bearing assemblies and replace existing bent caps while maintaining traffic. Key construction requirements specify that contractors must use hydraulic jacks placed under beams at each bent, supported on false bents or cribbing, with a maximum differential height of 1.5 inches between spans. Contractors may submit proposed alternate construction sequences for approval. Shop drawings containing the proposed repair procedure, sequence of operations, temporary supports, and jacking plans must be submitted for acceptance, either stamped by a Georgia Professional Engineer or including sufficient detail for county review and acceptance.
The document clarifies several technical specifications and scope limitations through answers to seven pre-bid questions. Rip-rap locations are to be determined by the engineer based on site conditions at Bent 2 pier wall footer and forward bank, with no requirement for the contractor to regrade the existing slope prior to placement. The existing slope is not to be regraded, and the contractor is responsible for removing and disposing of all materials from existing bridge structures at locations off-site. Asphalt repairs are excluded from the scope; contractors must sawcut existing asphalt overlay only. Bearing realignment and anchor bolt repair are associated with spall repair locations and may be completed per Activity 830.17 or by contractor-proposed alternate methods. All costs for bridge raising, including labor, materials, equipment, temporary shoring, clearing, grading, excavation, and material disposal, are included in the lump sum bid price for spall repairs and bearing/anchor bolt work under Item No. 518.
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1. ADD: Special Provision 518 – Raise Existing Bridge (Revised June 17, 2026).
See pages 2 & 3.
2. ADD the following GENERAL NOTES
Rip rap is shown in plans “As directed by Engineer” and intended to address GDOT inspection finding with location listed as: “Bent 2 pier wall footer and the forward bank.” Final locations and quantities will be determined “As directed by Engineer” based on site conditions at the time of repair. The existing slope is not to be regraded prior to placing rip rap.
No material shall be salvaged. The contractor shall dispose of materials from the existing bridge structures. There are no suitable areas for disposal of materials on the project
Asphalt repairs are not included in the scope of work of this contract. The contractor shall sawcut the existing asphalt overlay.
The realignment of the bearings and repair of anchor bolts are associated with the spall repair locations. Anchor bolts may be repaired in accordance with Activity 830.17 – Anchor Bolt Repair; OR, by Contractor proposed alternate accepted by the County.
The contractor shall submit for acceptance Shop Drawings containing the proposed repair procedure, sequence of operations, temporary supports, and jacking plan. Shop Drawings should be stamped by a Georgia
Professional Engineer; OR, include sufficient details for review and acceptance by the County.
Revised: June 17, 2026 Date: March 10, 2005
First Use Date 2001 Specifications: December 12, 2002
DEPARTMENT OF TRANSPORTATION
STATE OF GEORGIA
SPECIAL PROVISION
SLATE MINE ROAD over PINE LOG CREEK Gordon County
Section 518—Raise Existing Bridge
Add the following:
518.1 General Description
This work consists of raising an existing bridge the minimum amount necessary to remove and reset bearing assemblies and replace existing bent caps while maintaining traffic in accordance with the Specifications and Plan Details.
518.1.01 Definitions
General Provisions Section 109 through 150.
518.1.02 Related References
Section 500
Section 501
518.1.03 Submittals
A. Shop Drawings
Submit proposed methods for raising the bridge spans in sufficient time for review and approval by the Engineer prior to commencing work.
B. Calculations
Submit calculations for the proposed method and materials.
518.2 Materials
Ensure that materials are in accordance with the Plans and Specifications.
518.3 Construction Requirements
518.3.01 Personnel
General Provisions 101 through 150.
Section 518 – Raise Existing Bridge
518.3.02 Equipment
General Provisions 101 through 150.
518.3.03 Construction
A. Contractor Options
1. Use either of the following methods:
a. Hydraulic jacks may be placed under each beam at each bent and act in unison in each bay at each bent and be supported on false bents or cribbing.
b. Hydraulic jacks may be used in conjunction with jacking beams and act in unison in each bay at each bent and be supported directly on existing cap unless cap is being replaced as shown in the plans.
c. Jacking directly on or using the edge beams will not be allowed.
2. Jack the bridge by individual spans or in unison with adjacent spans. Do not exceed 1½ inches (37.5 mm) differential height between spans or bridge approaches.
B. Blocking
1. Temporary: Use standard steel rolled shapes and/or plates as temporary blocking under jacks. At other locations, standard steel rolled shapes or oak timbers may be used.
2. Permanent: Use steel bearings plates, shim plates and steel pedestals, and existing bearing assembly plates unless otherwise shown in the plans. When multiple shim plates are used, weld plates all around at each interface. The minimum thickness of any shim plate is ¼ inch (6 mm).
C. Anchor Bolts
Install new anchor bolts in accordance with the Plans.
D. Manifolds and Gauges
1. When the jack stroke is greater than 1 inch (25 mm), use a gauge at each jack and use a minimum of one manifold at each bent.
2. When the jack stroke is equal to or less than 1 inch (25 mm), use a minimum of one gauge per manifold.
3. Only use standard steel rolled shapes and/or plates as temporary blocking under jacks. At other locations, standard steel rolled shapes or oak timbers may be used.
D. Damage Repair any damage to the bridge or road resulting from bridge jacking work at no expense to the Department.
518.4 Measurement
No separate measurement for payment of Raise Existing Bridge will be made.
518.4.01 Limits
General Provisions 101 through 150.
518.5 Payment
This work shall be included in the overall price bid for Spall Repairs and Realign Bearings and Repair Anchor Bolts.
This Lump Sum price for those items is full compensation for furnishing all labor, materials, equipment, and services necessary to raise the bridge. This cost also includes any costs associated with obtaining access, clearing, grading, excavation, and temporary shoring.
Payment will be made under:
Item No. 518 Raise Existing Bridge, STA -
518.5.01 Adjustments
General Provisions 101 through 150.
RabunB
NOTES & COMMENTS
No Separate Payment
Addendum Questions Answered Jun 17, 2026
1) Please provide locations for new rip rap
Rip rap is shown in plans “As directed by Engineer” and intended to address GDOT inspection finding with location listed as:
“Bent 2 pier wall footer and the forward bank.” Final locations and quantities will be determined “As directed by Engineer” based on site conditions at the time of repair.
2) Is it the county's intention to have the contractor include re-shaping /sloping the river bank prior to placing the new Rip Rap? If so, please provide additional information on what the requirements will be for the grading and/or sloping of the river bank The existing slope is not to be regraded prior to placing rip rap.
3) Please confirm that the contractor is to include the cost for the removal and disposal of the temporary wood support beam in our base bid amount
No material shall be salvaged. The contractor shall dispose of materials from the existing bridge structures. There are no suitable areas for disposal of materials on the project
4) Bridge Deck Joint Replacement: The two joints located on each end of the bridge are covered with asphalt. Please confirm that no asphalt repairs are to be included only replacement of the joints
Asphalt repairs are not included in the scope of work of this contract.
The contractor shall sawcut the existing asphalt overlay.
5) Concrete spall repair at Span 1, Beam 5 @Bent 2. To complete these repairs, it will be necessary to lift this beam. Is it the county's intention for the contractor to provide limited shoring and lift only this beam while the repairs are completed?
The Construction Sequence in the plans and the GDOT Bridge
Maintenance details discuss temporary support spall repair and resetting bearings. As noted in the plans: IN LIEU OF THE ABOVE
CONSTRUCTION SEQUENCE, THE CONTRACTOR MAY SUBMIT A
PROPOSED CONSTRUCTION SEQUENCE FOR APPROVAL.
6) Concrete spall repair at Span 2, Beam 3 @Bent 2. To complete these repairs, it will be necessary to lift this beam. Is it the county's intention for the contractor to provide limited shoring and lift only this beam while the repairs are completed?
The Construction Sequence in the plans and the GDOT Bridge
Maintenance details discuss temporary support spall repair and resetting bearings. As noted in the plans: IN LIEU OF THE ABOVE
CONSTRUCTION SEQUENCE, THE CONTRACTOR MAY SUBMIT A
PROPOSED CONSTRUCTION SEQUENCE FOR APPROVAL.
7) Realign bearing and repair anchor bolts, Qty. 2, please confirm that these repairs are at the same location as the two spall repairs
The realignment of the bearings and repair of anchor bolts are associated with the spall repair locations.
8) Do we need engineered drawings for any bridge jacking to do the concrete work and bearing plates?
The contractor shall submit for acceptance Shop Drawings containing the proposed repair procedure, sequence of operations, temporary supports, and jacking plan. Shop Drawings should be stamped by a
Georgia Professional Engineer; OR, include sufficient details for review and acceptance by the County.
Anchor bolts may be repaired in accordance with Activity 830.17 –
Anchor Bolt Repair; OR, by Contractor proposed alternate accepted by the County.
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