ASHE SNJ & ASCE SNJ Joint Meeting
Replacement Cotton Mill Bridge, Atlantic County Bridge No. 01-HM-L54 on Mill Street (CR 559) over Great Egg Harbor River, Hamilton Township, Atlantic County
Project Description
The project involves the replacement of Atlantic County Bridge No. 01-HM-L54 on Mill Street (CR 559) over Great Egg Harbor River, Hamilton Township, Atlantic County. Atlantic County Bridge No. 01-HM-L54 was constructed in 1940 and is a three (3) span, simply supported, concrete encased steel beam and concrete deck bridge. The superstructure is supported by two (2) concrete abutments and two (2) concrete piers on timber piles. The total bridge span is 100.5 ft. The replacement is necessary due to the poor physical condition of the superstructure. The substructure exhibited full height, vertical through cracks up to ½″ wide in all structural elements. The northeast wingwall exhibits 3″ lateral movement. The underwater inspection revealed severe scaling with exposed aggregate, numerous spalls, cracking in the concrete, as well as undermining of the footings. The proposed structure is a two (2) span concrete pre-stressed girder bridge. The superstructure consists Next Beams that was designed to carry dead load and live continuity over the pier to eliminate the deck joint. Semi-integral abutments will be utilized and comprised of steel H pile concrete abutments and a new reinforced concrete pier on steel piles. Overhead utilities will be permanently relocated to the west of the bridge. Water, gas and sewer main will be temporarily relocated west of the proposed bridge on a temporary utility bridge.
Speaker Bio
Yan Gao, PE, Section Head, Structures, Johnson Mirmiran & Thompson, Inc.
 Mr. Gao is the Structures Department Head at JMT’s Trenton, NJ office. As the Department Head, he is involved in all aspects of design, starting from preliminary study and drafting to the final construction phase. Mr. Gao is a project manager/ lead engineer with more than 14 years of detailed experience in project management, structural design, construction and inspection of transportation structures. His responsibility includes project management for bridge replacement/rehabilitation and bridge inspection for NJDOT and various county projects. As project manager on various projects, Mr. Gao has a broad knowledge of the procedures to obtain permits and SHPO approval. He has extensive experience coordinating and managing transportation projects including highway design, right of way, utilities, and cultural resources. He is proficient in all managerial and technical aspects of design, evaluation, rehabilitation, and repair of bridge projects. Mr. Gao has extensive knowledge of FHWA, AASHTO, NJTA, NJDOT, and PennDOT criteria and procedures.
PDH
Attendees will be eligible to receive 1 PDH (NJ, PA, and DE; check for eligibility in other states).
Schedule
5:00 PM – Social Hour
6:00 PM – Dinner
6:45 PM – Meeting Sponsor Presentations
7:00 PM – Presentation
8:00 PM – Closing Remarks and Upcoming Event Announcements
Cost (Registration closes on Friday, May 19,2023.)
ASHE or ASCE Member
$60.00
Non-Member
$80.00
Public Employee/Lifetime Member/Retired
$35.00
If retired, email Sara Irick, at sara.irick@fpaengineers.com to register.
Student
Free
Students should contact Alexander Kluka, ASHE SNJ Membership Committee Chair, at alexander.kluka@wsp.com to register.
ASHE SNJ Meeting Sponsorship
$250.00
Includes 1 free registration.
ASHE SNJ Gold Meeting Sponsorship
$200.00
Available only to ASHE SNJ Gold Sponsors. Includes 1 free registration.
ASHE SNJ Platinum Meeting Sponsorship
$150.00
Available only to ASHE SNJ Platinum Sponsors. Includes 1 free registration.
Registrations changed after the registration closing deadline will be charged the Non-Member price.
ASHE SNJ would like to thank our sponsors!
For information on becoming a sponsor, please contact Mike Danko at Mdanko@MidAtlanticEng.com.
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