6-21 complete in place. Outlet pipe for Underdrain, Type C will be paid for under Section 603 - Pipe Culverts and Storm Drains. Within and beyond the trench limits, backfill, couplings and b ands and other related items will not be paid for separately, but shall be considered included in the unit bid price for the type of underdrain being installed. Excavation will be considered incidental, except as provided i n Section 206 - Structural Excavation. No allowance for payment will be made f or excavating or material excavated beyond the horizontal dimensions shown for Underdrain , Type B or Underdrain, Type C. Payment will be made under: Pay Item P a y U n i t
605.09 6 inch Underdrain Type B Linear Foot
605.10 6 inch Underdrain Outlet L i n e a r F o o t
605.11 12 inch Underdrain Type C L i n e a r F o o t
605.12 15 inch Underdrain Type C L i n e a r F o o t
605.13 18 inch Underdrain Type C L i n e a r F o o t
605.14 21 inch Underdrain Type C L i n e a r F o o t
605.15 24 inch Underdrain Type C L i n e a r F o o t
605.17 30 inch Underdrain Type C L i n e a r F o o t
605.18 36 inch Underdrain Type C L i n e a r F o o t
SECTION 606 – GUARDRAIL
606.01 Description This work shall consist of furnishing and i nstalling guardrail
components in accordance with these specifications and in reaso nably close conformity with the lines and grades shown on the plans or as established. The types of guardrail are designated as follows: Type 3-Galvanized steel "w" beam, wood posts or galvanized stee l posts. Type 3a-Galvanized steel "w" beam, wood posts, wood or composit e offset blocks. Type 3aa-Corrosion resistant steel "w" beam, wood posts, wood o r composite offset blocks. Type 3b-Galvanized steel "w" beam, galvanized steel posts, galv anized steel offset blocks. Type 3c-Galvanized steel "w" beam, wood posts or galvanized ste el posts, wood or composite offset blocks.