Part 1 — General
1.1 Section Includes
A.Concrete lining for corrugated metal pipe invert .
1.2 Related Sections
A.Section 03055 : Portland Cement Concrete
B.Section 03211: Reinforcing Steel and Welded Wire
C.Section 03310 : Structural Concrete
D.Section 03390 : Concrete Curing
1.3 References Not Used
1.4 Defintions Not Used
1.5 Submittals
A.Include the following information into a single submittal for review for each drainage pipe to be lined. Use the naming convention used in the plans for each location. D ivide information into the sections listed below .
1.Work Area
a.Locations and dimensions of any temporary access roads
b.Locations and dimensions of work area “footprint ”
c.Amount of time the footprint will be exposed
d.Written access agreements from property owners when work area is outside Department Right of Way
2.Preparation
a.Host pipe cleaning
b.Management of flows in the host pipe
c.Initial pipe inspection
3.Installation
a.Method of placing and finishing concrete
b.Curing method, identifying required curing times and temperatures
c.Any potential for producing contaminant concentrations in excess of surface water quality standards or ambient groundwater quality standards as applicable
d.Control and disposal of any contaminants from materials or installation methods during and after installation
e.Final pipe inspection
Part 2 — Products
2.1 Concrete
A.Concrete, Class AA(AE), T ype V cement. Refer to Section 03055.
B.Obtain approval from the E ngineer for an alternate material.
2.2 Welded Wire Reinforcement
A.Galvanized welded wire reinforcement 6 x 6-W1.4 x W1.4. Refer to Section 03211.
Part 3 — Execution
3.1 Preparation
A.General
1.Perform all work within the limits of the Department right of way unless written agreements are in place with adjacent property owners.
2.Complete backfill and embankment placement over the pipe before concrete lining.
3.Provide the necessary controls to prevent pollutants from being transported downstream.
4.Verify host pipe internal diameter and length before ordering concrete.
B.Host Pipe Cleaning
1.Remove material to include sediment, rocks, and miscellaneous debris in order that an inspection and concrete lining can be properly performed.
2.Use a cleaning method and tools that will not cause damage to the pipe or surrounding roadway features.
a.Notify the Engineer when cleaning could result in damage .
b.Do not cause erosion of surrounding areas from cleaning operations.
c.Minimize sediment from being transported downstream.
3.Collect and properly dispose of all material removed.
C.Host Pipe Inspection:
1.Perform a visual inspection
2.Inspect the condition of the host pipe and the suitability of the concrete lined invert installation . Document and notify the Engineer of the following:
a.Collapsed or impassable sections of the pipe
b.Horizontal and vertical alignment deviations
c.Structural concerns
d.Loss of material surrounding the pipe exterior
e.Infiltration of water
f.Repairs required to perform the installation
3.2 Placement
A.Shape and support the welded wire reinforcement to provide 1 inch clearance from the crest of the metal corrugations.
B.Place concrete at least 4 inches abov e the crest of the corrugations and to a width one third of the circumference of a round pipe or the maximum span of an arch pipe.
1.Control the thickness of the concrete by installing non- corrosive pins, nails , or other gauging devices into the crest of the corrugations , perpendicular to the surface .
C.Finish the concrete to a floated surface finish according to Section 03310.
D.Cure concrete according to Section 03390.
1.Provide a minimum of 48 h ours before allowing water to flow through the pipe after applying the curing compound.
E.Provide adequate control of water in the host pipe when necessary.
1.Repair damage caused as a result of flow control or lack thereof
Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 385–387 of 1,331.