HEB and the Town of Lincoln held a public meeting on Monday, February 13, 2012 to discuss the history and project status of the Loon Mountain Bridge, and receive public input. Chris Fournier, P.E., HEB project manager, presented several rehabilitation alternatives and took questions from the audience. Presentation documents: agenda, bridge profile, bridge plan
Questions raised during the meeting and HEB's responses are outlined below:
Q1: Does the FEMA and NHDOT funding vary when
considering the rehabilitation versus replacement alternatives?
A1: Yes, it may. It gets complicated. The FEMA
Public Assistance program provides 75% reimbursement for all costs to repair
the damage “in-kind” (meaning back to the way it was). The FEMA Public
Assistance Hazard Mitigation program provide 75% reimbursement to fund the
improvement of the repairs to mitigate future hazards. This funding
mechanism generally is limited at a match of the initial Public Assistance
funding; however, there is an opportunity to exceed this limit by proving that
the benefits outweigh the costs. Benefits in this case are calculated
using a FEMA application that considers past damage, loss of business if the
bridge is closed, as well as the detour efforts. The NHDOT State Aid
Bridge (SAB) program has committed to reimburse 80% of the costs remaining
after FEMA has paid their portion. Ideally this would leave the Town with
a 5% share of the total project cost.
Q2: Would the lane configuration of the current
bridge (3 lanes and one sidewalk) be the same for the new bridge alternate?
A2: Yes. No one has expressed interest in any other
configuration; therefore the study is moving forward assuming the existing lane
configuration.
Q3: Was a downstream location considered for the new
bridge alternate?
A3: Yes, both an upstream and downstream location
have been considered and have been ruled out at this point for a variety of
reasons. The preferred relocation for the new bridge, if this alternative is selected, is directly
adjacent to the existing bridge.
Q4: Does the new bridge alternate consider raising
the bridge to alleviate issues with high water?
A4: No, during Tropical Storm Irene the water was
reported to be only within 5 feet of the existing bridge structure. The
bridge failure occurred because of scouring beneath the north abutment.
In addition, the approaches on either end of the bridge are very close to the
bridge and do not facilitate much elevation change.
Q5: Is it true that the NHDOT prefers that a new
bridge be built?
A5: No, NHDOT requested that the new bridge
alternate be studied to determine whether a new bridge would be more cost
effective than rehabilitating the existing bridge.
Q6: Will the utilities be relocated beneath the bridge
as they were prior to the storm?
A6: Yes, all alternatives consider relocating the
utilities beneath the bridge structure.
Q7: What is the condition of the remaining portion of
the existing bridge? What repairs need to be made?
A7: The existing bridge spans are in good condition. However, we recommend repairs be made. The expansion joints between the
spans have failed and caused water damage. The repairs would include
replacing the expansion joints; replacing some bearings; replacing some
diaphragms; repainting a portion of the steel beams; and concrete deck
repairs as needed.
Q8: Why is the Town voting on funding the project at
this Town meeting and not the next Town meeting (2013) if the engineering study
isn’t complete and construction isn’t starting until spring 2013?
A8: If a bridge rehabilitation alternate is selected,
the new steel beams will take 4-5 months from order to delivery. In order to be ready to construct in the spring, the beams must be
ordered during the winter and consequently the contract must be signed with the
bridge contractor before that point. The Town must appropriate the
funds for construction prior to signing a contract (December 2012).
Labels: Loon Mountain Bridge