Hilde

[Hilde]

GNSS – Global Navigation Satellite System

Nice article that explains PDOP (Position Dilution of Precision), HDOP & VDOP

https://www.agsgis.com/What-is-PDOP-And-Why-its-Obsolete_b_43.html#:~:text=The%20full%20explanation%20is%20as%20follows%3A&text=Thus%2C%20PDOP%20is%20Position%20of,above%20to%20triangulate%20our%20position.

[Hilde]

I need to build a set of links to bridge framing, decking & scaffolding links.

I’ll start with this one: A link for Swing-Lo’s website – They have systems for working over & on parapets (inspection, maintenance, concrete repairs)
https://swing-lo.com/parapet
They have a downloadable catalog with numerous options

[Hilde]

Excellent link for Touch-up & Repair of Hot-Dip Galvanized materials – There’s a whole playlist/series of videos here

[Hilde]

Links to Gregory Industries TTMA-200 truck-mounted impact attenuator

https://www.gregorycorp.com/gregory-highway/TTMA-200

[Hilde]

Another resource that I need to dive into:

Technical Toolboxes Blog

[Hilde]

Links to several on-line trade journals in the trenchless space:

Trenchless Technology

2025 HDD Academy

I’m also adding a link to Benjamin Media – Looks like their portfolio has several underground & construction based publications

[Hilde]

Encountered an issue with cross-bolts on temporary concrete barrier becoming seized due to exposure & salt spray. Good article on bolt lubricants & anti-seize:

Bolt Lubricant and Torque: A Comprehensive Guide

• This reply was modified 1 month, 1 week ago by Hilde.

[Hilde]

Oftentimes, I find myself searching for IDOT’s dead end paving joint detail, I can never seem to readily find it: It’s BD53. Here’s a link to the District 1 Standards Index of Sheets:
https://apps.dot.illinois.gov/eplan/desenv/standards/District%201/D1DistrictStandards/PDFs/index_22X34.pdf

[Hilde]

Thin polymer overlays for bridge decks – This is a nice step-by-step article on the process & installation:

https://www.kwikbondpolymers.com/polymer-overlay-types-101/

Excellent seminars!!

• This reply was modified 3 months, 4 weeks ago by Hilde.
• This reply was modified 3 months, 4 weeks ago by Hilde.

[Hilde]

A bridge drain maintenance issue is often-times dissimilar movement between the deck and the abutment, drains get ripped. These are interesting movable pipe joints that I’ve not seen used….

EBAA Iron Flexible Pipe Joints

https://championfiberglass.com/products/champion-bridge-drain/

• This reply was modified 4 months, 2 weeks ago by Hilde.

[Hilde]

Slope monitoring – Inclinometer references

https://www.soilinstruments.com/products/inclination/inclined-digital-inclinometer-system/

https://www.geotech.hr/en/landslide-monitoring-measuring-inclinometer/

• This reply was modified 5 months ago by Hilde.
• This reply was modified 5 months ago by Hilde.

Attachments:

1. 24-60X76_Wall_9-Borehole-30AM.pdf

[Hilde]

Bridge sliding references:

FHWA Slide-In Bridge Webpage – Great links & resources

FHWA Slide-In Bridge Construction Implementation Guide

Roads & Bridge Article

LGH Barkus Article – Project report on Hydra-Slide

Enerpac Skid System
https://www.enerpac.com/en-us/skidding-systems/low-height/LH400SK

• This reply was modified 5 months ago by Hilde.
• This reply was modified 5 months ago by Hilde.
• This reply was modified 2 weeks, 4 days ago by Hilde.
• This reply was modified 2 weeks, 4 days ago by Hilde.

[Hilde]

BNSF Guide to Industry Track Projects

A nice reference guide that includes turnout standard details

[Hilde]

IDOT Construction Inspector’s Checklists are now housed here on IDOT’s website

• This reply was modified 5 months ago by Hilde.

[Hilde]

Link to Neenah’s Catalog

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