Consider the exposure environment in the selection of foundation types, especially in waterway environments. Use of steel piling must incorporate recommendations in the

TxDOT Guidelines for the Use of Steel Piling for Bridge Foundations

,

https://ftp.txdot.gov/pub/txdot-info/brg/geotechnical/steel-pilings.pdf

. Additional durability guidance of Article 10.7.5 applies.

Do not use timber piling without obtaining approval of the TxDOT Bridge Division.