Sillman St. Office Warehouse — Industrial Site Civil Engineering in Sealy, TX
Sealy · Austin County · Texas
Industrial, Warehouse & Metal Building Development
A single-occupant office warehouse on a graded, floodplain-constrained site
JRH Engineering provided complete civil engineering design for a new single-occupant office warehouse in Sealy, Texas. The site presented two constraints that required careful engineering: a significant grade change throughout the property, and a floodplain at the rear that limited usable land. JRH resolved both by routing site access away from an adjacent railroad crossing and placing detention in the floodplain-impacted rear — turning the site most constrained area into its most useful drainage asset.
AT A GLANCE
Site civil design
Full site civil design including grading, paving, access, and building pad layout
Access routed away from the adjacent railroad crossing — eliminating the need for railroad crossing permits and coordination delays
Detention placed at the rear of the property where floodplain constraints already limited development potential — turning a constraint into a drainage asset
Grade change managed through strategic site grading — natural topography used to minimize earthwork cost
Utility infrastructure
Private water well and septic system designed and permitted — no municipal utility extensions required
Well and septic approach eliminated all utility extension dependency from the schedule
No waiting on city or MUD infrastructure — the project timeline stayed entirely within the developer control
Stormwater and drainage
Detention located at the rear of the property in the floodplain-impacted area — land that could not support building development was repurposed for drainage
Rear placement preserved the front and middle of the site for the warehouse building and operations area
Storm drainage approved by the City of Sealy
Permitting and agency coordination
Railroad crossing permit avoided entirely through access rerouting — one of the most time-consuming approval processes on industrial sites eliminated before submittal
City of Sealy permitting streamlined by a complete submission package
Well and septic design removed utility permitting from the critical path entirely
The Challenge — railroad crossing permits run on their own clock
Railroad crossing permits are slow. They involve a separate federal and railroad company approval process that runs independently of city or county review. The Sillman St. site had an adjacent crossing that would have been the natural access point — but natural is not always fastest. Meanwhile, the rear floodplain area was limiting the buildable footprint, and no municipal utilities were available.
JRH’s Approach — route around the crossing, use the floodplain
JRH eliminated the railroad crossing problem by rerouting access to avoid it entirely — one design decision that removed an entire approval track from the schedule. The floodplain rear was not fought; it was used. Detention was placed there because it was the lowest-value development land on the site, and it satisfied the drainage requirement while preserving the front and middle for the warehouse. A private well and septic kept utilities off the critical path.
The Results
01
Railroad crossing permit eliminated through access rerouting — one of the most common industrial site delays avoided entirely
02
Floodplain rear converted to detention area — a site constraint turned into a drainage asset, preserving buildable front acreage
03
Utility independence achieved through private well and septic — no extension timeline dependencies
04
Frequently Asked Questions
What was the main engineering challenge on the Sillman St. Office Warehouse project?
The site had a significant grade change throughout the property and a floodplain at the rear limiting usable land, and the natural access point would have required a time-consuming railroad crossing permit.
How did JRH Engineering avoid the railroad crossing permit at Sillman St.?
JRH rerouted site access away from the adjacent railroad crossing entirely, eliminating that approval track, and placed detention in the floodplain-impacted rear of the property, turning a constraint into a drainage asset.
What were the results of the Sillman St. project?
JRH eliminated the railroad crossing permit through access rerouting, converted the floodplain rear into a drainage asset while preserving buildable front acreage, and achieved utility independence through a private well and septic system.