Structural Design, Analysis & Investigation
We provide structural engineering services to a wide variety of clients, including building owners & buyers, architects, builders, civil engineers, real estate firms and law firms.
For removal of interior bearing wall, "header" beam is necessary. We prepare plans & specifications, often based on information provided by customer. Please contact us to discuss your project.
New for holidays===>>> posters of vintage railroad bridges.
See report (12-5-18; 45 pages) about collapse of house in Hamilton New Jersey.
Use back arrow to return to site.
Design of new foundations to support raised houses has been performed for many projects along New Jersey shore. Please call or email to discuss your project.
See report (11-20-17; 107 pages) about FEMA process for structural flood damage claims.
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See comments about replacement of Glimmer Glass Bridge submitted to county project team.
John F Mann, PE to present webinar "Structural Design Defects" on April 20, 2018. Contact Lorman Education for further information.
John F Mann, PE presented webinar, "Foundation Damage and Repair" on March 2 & 3, 2016. In 2015, seminar was presented in Cherry Hill, NJ and Nashville, TN.
Mr. Mann presented seminar "Building Codes in New Jersey" in 2014. Code requirements for supporting raised houses in flood zones were highlighted.
We offer the following basic services:
Engineering services (requiring PE seal) currently provided for projects in New Jersey, New York, Pennsylvania, Maryland & DC.
However, basic questions from anyone can be answered. A new section ("Questions & Answers") includes brief answers to queries made by visitors.
Report discussing defective basement foundation walls in New Jersey is available; see Foundation Wall Design. Use back arrow to return to site.
See article about basic terms for steel construction.
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Report about valley truss connection design in Sun City Hilton Head, Bluffton SC; Valley Truss Report
See the following CV for John F Mann, PE;
|CVJFM November 2017 vpdf.pdf (PDF — 215 KB)|
Please contact us to discuss your project requirements. Evaluation of various problems can sometimes be performed based on information provided via email and phone. Answers to relatively easy questions are often provided without charge.
Lighthouse at Sandy Hook, NJ (September 2008).
Built in 1764, this is the oldest operating lighthouse in the US.
photo by John F Mann, PE
For additional information; Sandy Hook Lighthouse
After 4 years of steady increase through 2014, site traffic has leveled off, though Visitors have increased in 2018.
Basic software to be added during 2019.
Year Visitors Page Views
2019 96,803 118,556 (to 11-14-19)
2018 118,293 151,910
2017 107,001 148,146
2016 104,299 145,864
2015 107,962 148,079
2014 105,219 152,748
2013 81,696 119,566
2012 73,375 116,973
2011 46,275 72,263
2010 15,149 23,001 (2 months)
Visitors have arrived from every corner of the US and world. Numerous visitors have dropped by from Canada and a wide variety of other countries, including Australia, UK, India, Italy, Ireland, Russia, China, France, Malaysia, Philippines, Vietnam, South Africa, Iran, Saudi Arabia, Libya, Israel, Papua New Guinea, Haiti and even Nepal.
Most popular pages have been "Structural Ridge Beam", "Beam Design - Basic" and "Solar Panels On Sloped Roof".
See photos of damage from hurricane Sandy on separate page (from list).
Collapse of Foundation Wall (August 2011)
Photos below show effects due to total collapse of long segment of block foundation wall supporting commercial building in Pennington NJ. Height of soil backfill against the wall had already exceeded standard limits such that the wall was already cracked. Water from tropical storm Irene saturated backfill, providing additional pressure that resulted in total collapse into basement.
Sidewalk collapsed downward as foundation wall collapsed inward.
View from inside basement, looking towards collapsed segment of block foundation wall.
Remaining walls around basement were also cracked and pushed inward, due to excessive height of soil backfill pushing against these walls.
Photos below, showing construction of a segmental concrete bridge in New Jersey, are for general interest. Design was performed by others for NJDOT. The bridge is now completed and open for traffic in both directions.
First half of new segmental concrete bridge over inlet to Shrewsbury River from Sandy Hook Bay, between Highlands and Sea Bright, New Jersey.
View is from top of hill below north tower of Twin Lights in Highlands.
The northbound bridge has now been completed, alongside the southbound bridge.
For history of Twin Lights; Twin Lights Highlands NJ
Looking north towards bridge under construction; August 2009.
Lower span is the former drawbridge which has since been removed.
Photos by John F Mann, PE