5/29/2025
1 RiversideCA.gov1
RiversideCA.gov
Mobility and Infrastructure CommitteeJune 12, 2025Pavement Trench Cut Fee Study and Proposed Fee SchedulePublic Works Department RiversideCA.gov2
BACKGROUNDBACKGROUND•Inflation, higher construction costs•Funding Gap between target PCI and available budget•Water and weather-related damage, storm-related impacts•Damage to roadways from construction and heavy vehicles Factors contributing to declines in the network pavement condition 5/29/2025
2 RiversideCA.gov3
BACKGROUNDBACKGROUND/FUNDING SOURCES•Regional Surface Transportation Program (RSTP)•Community Development Block Grant (CDBG)•Surface Transportation Program (STP)•Bipartisan Infrastructure Investment and Jobs Act (IIJA)Federal State Local•Gas Tax •SB1 Gas Tax•Vehicle Registration Fees•CalRecycle (Expended)•General Fund•Measure A•Measure Z•Impact Fees–Development–Utility Cut RiversideCA.gov4
BACKGROUNDBACKGROUND – BEST PRACTICES1) GIS Paving Map2) Paving Moratorium - 3 to 5 years3) Updated Std. Drawing 453 detail and standardize trench repairs4) Refinanced the 2013 Debt Obligation5) On-Call Contractor to repair the RPU water line temporary patches6) Actively surveying City streets to have latest PCI information7) Using Lucitysoftware to make PMP recommendations8) Piloted a 100% Recycled Product9) Asphalt grindings for unimproved alleys 10)Will pilot “Cool” pavement11)Appropriate one-time $10 million to address paving needs12)Identified $5.325 in equipment needs – will pursue grant funding13)Assess truck traffic volumes and consider Axle Restrictions14)Continue to assess emerging technology, materials, and best practices 5/29/2025
3 RiversideCA.gov5
BACKGROUNDROAD DAMAGE BY TRENCHING OPERATIONS1. Water Intrusion leads to cracking2. Zone of Influence (2-ft beyond the cut) – lateral support becomes weak and unstable.3. 90% compaction is not always achieved.
RiversideCA.gov6
BACKGROUNDPAVEMENT CONDITION INDEX (PCI) •City is responsible for 875.9 centerline miles streets•Overall Network PCI= 58•Trench cuts reduce pavement life by 24% Condition CategoryPCIVery Good7Very Poor402505Marginal6Poor703Good604Fair50Pavement Condition1001Excellent852City’s Average PCI 58 5/29/2025
4 RiversideCA.gov7
BACKGROUND5-YEAR PCI AND FUNDING ANALYSIS2025 PCI & Funding AnalysisBacklogPCIAnnual Budget39%49$031%53$2023%58$41M20%60$53M16%64$72M13%68$93M10%70$105MFunding Source (Millions)Fiscal Year SubtotalMeasure ZCDBGSB1 Gas TaxState Gas TaxMeasure A$13.50NA$13.502016/17$16.375$2.875$13.502017/18$16.375$2.875$13.502018/19$21.00$7.80$2.60$5.40$2.80$2.402019/20$15.80$7.80$0$2.70$1.40$1.202020/21$20.20$7.80$1.20$6.40$2.80$2.002021/22$25.90$12.30$1.90$7.20$2.10$2.402022/23$31.80*$8.80$1.10$7.70$1.80$2.402023/24$25.93$12.00$1.63$7.45$2.45$2.402024/25Pavement Management Program Annual Budget* A one-time $10 million appropriation from the General Fund RiversideCA.gov8
2025 5-YEAR FUNDING MODEL
5/29/2025
5 RiversideCA.gov9
METHODOLOGY 30 PAIRS OF SITES•Deflection Comparison•Overlay Design and ComparisonFEE CALCULATIONStructural Deterioration•PCI Comparison•% Reduction in Service Life ComparisonFunctional DeteriorationSITE SELECTION
NO-CUT SECTION
CUT SECTION
RiversideCA.gov10
FIELD EVALUATION
7.07.57.04.251.472.755.927.70.01.02.03.04.05.06.07.08.001020304050607080On Utility T-Arm Zone ofInfluenceNo-Cut SectionOverlay Thickness, inchAverage Deflections, milsOverlay Thickness, inAverage Deflection, mils
1. Higher the deflection, weaker the pavement2. Deflection is higher/pavement is weaker near the cut3. Thicker overlay is needed to compensate for structural capacity loss near the cut 5/29/2025
6 RiversideCA.gov11
FIELD EVALUATION – FUNCTIONAL DAMAGE
of sites exhibit FUNCTIONAL damage93%
RiversideCA.gov12
FIELD EVALUATION SUMMARYA TOTAL OF 30 SITES WERE EVALUATEDUtility cuts cause damage to pavements.o97%percent of the test sites were either structurally or functionallydamaged by utility cuts.o73%percent of the test sites had both structural and functional damage.Utility cuts cause structural damage to pavements.oAn average overlay thickness of4 inches is neededto compensate for theloss in structural capacity.Overall, pavements with cuts deteriorate more rapidly than those without cuts.oAn average condition reduction of18 PCI pointswas observed when utilitycuts were present.Utility cuts cause damage to the pavement beyond the edge of the cuts (2-ftZone of Influence). 5/29/2025
7 RiversideCA.gov13
PROPOSED TRENCH CUT FEE SCHEDULEStudy byFee, $/SFCriteriaAgencyNCE, 20223.60-11.60PCIAnaheimNCE, 20221.04-1.51Functional Class and PCIDavisNCE, 20211.00-4.00Functional Class, Age of the Pavement, Size of the CutPacificaNCE, 20210.50-4.00Functional Class, Age of the Pavement, Size of the CutUkiahNCE, 20230.25-4.00Functional Class, PCI, Size of the CutSanta Barbara CountyNCE, 20230.25-2.00Functional Class, PCI, Size of the CutMonterey ParkMarcus, 19981.00-3.50Age of the PavementSan Francisco (City & County)Shahin et al., 20178.24-19.44Functional ClassLos AngelesShahin et al., 19961.80-11.82Trench Depth, Functional Class, PCI, Type of CutSacramento County, Elk Grove, Santa CruzShahin et al., 199910.00-36.00Functional Class, Age of the PavementSanta AnaMAXIMUM DAMAGE COST OF STRUCTURAL AND FUNCTIONAL EVALUATION WAS DEVELOPED AS FEES RiversideCA.gov14
FEE CALCULATION EXAMPLE
4’10’
•Residential/Arterial Street with a PCI of 60•$3.50/Square Foot Fee•Trench Details: Width = 4’ + 2’ + 2’ = 8’Length = 10’+ 2’+ 2’ = 14’•Fee Calculation: 8’x14’x $3.50/SF = $392.00 5/29/2025
8 RiversideCA.gov15
Strategic Priority No. 6 Infrastructure, Mobility and ConnectivityGoal No. 6.2 – Maintain, protect, and improve assets and infrastructure within the City’s built environment to ensure and enhance reliability, resiliency, sustainability, and facilitate connectivity.Goal No. 6.3 – Identify and pursue new and unique funding opportunities to develop, operate, maintain, and renew infrastructure and programs that meet the community’s needs.Cross-Cutting Threads
STRATEGIC PLAN ALIGNMENT
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RECOMMENDATIONThat the Mobility and Infrastructure Committeerecommend that the City Council approve aTrench Cut Fee Schedule to recover costsassociated with the damage from trenches andutility cuts on roads