addressing climate change adaptation in regional transportation plans

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Addressing Climate Change Adaptation in Regional Transportation PlansA Guide for California MPOs and RTPAsTable 4.1Potential Climate Change Impacts to California Transportation Infrastructure and Adaptation StrategiesClimate Impactand PotentialInfrastructureImpactSea-Level RiseCoastal Erosion Roadway Washout Damage to roadwaysubstructure Route closures Travel delaysCoastal and inlandtidal zone roadfloodingPotentialTransportation Impacts Planning Strategy Design Strategy Operations/Maintenance ResponseFlooding of roadwaysRoadway damageRoad closuresTravel delaysDisruption of transitservicesIdentify segments of roadwayvulnerable to erosionAddress vulnerability intransportation plansIdentify segments of roadwayvulnerable to storm surge andsea-level riseAddress vulnerability intransportation plansSupport land use policies thatdiscourage development onshorelinePlan and design moreredundancy into the systemStrengthening, heightening, andconstruction of new seawalls anddikesCombination of hard engineering(man-made structures) and softengineering measures (use ofecological principles and practices) toprotect coast infrastructureRelocation of highly impacted orvulnerable infrastructureRelocation of infrastructureIncrease base elevation ofinfrastructureChange to more resilient buildingmaterialsLarger or addition of drainage canalsnear coastal routesRelocation of sections of roadStrengthening, heightening andconstruction of new seawalls anddikesRepair damage as needed by emergencycontract or permanent restoration projectIncreased monitoring of infrastructure andconditions in coastal areas vulnerable to erosionRepair/replace/restore impacted infrastructure,as neededIncreased erosion controlPrepare for weather related delays and trafficdisruptionsPrepare to provide alternative route informationRepair damage as needed by emergencycontract or permanent restoration projectIncreased monitoring of infrastructure conditionsduring high tide and storm eventsEnsure drainage systems are adequate toaccommodate flood conditionsEnsure bridge openings/culverts are clear forappropriate flood managementDuring extreme precipitation events, continuallymonitor drainage systemsPrepare for weather related delays and trafficdisruptionsPrepare to provide alternative route informationImplement emergency operations responseprocedures4-4 Cambridge Systematics, Inc.
Addressing Climate Change Adaptation in Regional Transportation PlansA Guide for California MPOs and RTPAsClimate Impactand PotentialInfrastructureImpactPotentialTransportation Impacts Planning Strategy Design Strategy Operations/Maintenance ResponseBridge Scour Compromised integrity ofbridge structuresBridge failure resulting inclosureReduced bridge capacity Identify locations of bridges inlocations vulnerable to sea-levelrise and bridge scour Address vulnerabilities intransportation plansProtection of bridge piers andabutments with riprapRetrofit/replace/relocate existingbridges for new scour conditionsRepair damage as needed by emergencycontract or permanent restoration projectIncreased monitoring for bridge pier andabutment scourRailway Flooding Rail and railway roadbeddamage Disruption of rail traffic –closure or delayIdentify segments of railwayvulnerable to sea-level riseAddress vulnerability in railplansIncrease base elevation ofinfrastructureStrengthen, heighten, and constructnew seawalls and dikesCombination of hard engineering(man-made structures) and softengineering measures (use ofecological principles and practices) toprotect coast infrastructureIncreased monitoring of infrastructure conditionsEnsure drainage systems are adequate toaccommodate flood conditions Ensure bridge openings/culverts are clear forappropriate flood managementRelocate sections of trackIncrease in Intense Precipitation EventsFlooding ofRoadwaysRoute closuresTravel delaysIncreased safety risksIncreased need foremergency responseservicesRapid deterioration ofinfrastructureIdentify roadway segmentsimpacted by past intenseprecipitation eventsAddress vulnerabilities intransportation plansIntegrate improved floodprotection into transportationplansIdentify alternatives tovulnerable routesRestrict development infloodplainsPerform increased riskassessment for new roadsProtect critical evacuation routesUpgrade bridge deck and roaddrainage systems (increase thestandard drainage capacity for newinfrastructure)Increase culvert capacityIncrease/provide new waterretention/detention storage systemsNew asphalt/concrete mixtures ableto withstand flood conditionsRepair damage as needed by emergencycontract or permanent restoration projectIncreased monitoring of infrastructure conditionsPavement grooving and slopingPrepare for service delaysEnsure bridge openings/culverts are clear forappropriate flood managementDuring extreme precipitation events, continuallymonitor drainage systemsIncrease capacity and maintenance at pumpplant facilitiesMinimize repair backlogsPrepare to provide alternative route informationImplement emergency operations responseproceduresCambridge Systematics, Inc. 4-5
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appendix b reportState-of-the-Pract
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State-of-the-Practice Climate Chang
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C A L I F O R N I AADAPTATIONPLANNI
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Adaptation Planning Guide - Advisor
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List of Tables (cont’d.)Table 6.
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Climate Impact RegionsThe APG is or
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APGSTART HERE:PLANNING FOR ADAPTIVE
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What are the designated climate imp
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CA Climate Adaptation Planning Guid
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• Selected Demographic Data. Sele
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Cal-Adapt ProjectionsTable 1. Summa
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Selected Infrastructure and Regiona
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illnesses due to air pollution resu
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Additional Resources• Sea level r
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Cal-Adapt ProjectionsTable 5. Summa
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frequency can harm forests. Large i
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Bay Area RegionCounties: Alameda, C
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the Sacramento and San Joaquin rive
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Table 12. Selected Population Data
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Sea level rise is also expected to
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Additional Resources• Public Heal
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Cal-Adapt ProjectionsTable 13. Summ
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Table 16. Selected Population Data
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As with crops, climate change impac
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Additional Resources• Wildfire Re
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elevations, increased static levee
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The ecosystem functions of the Delt
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Setting and HistoryThe California D
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The islands in the lower Bay-Delta
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Some of the questions that should b
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Southern Central Valley RegionCount
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Biophysical CharacteristicsThe west
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The crops produced are varied and i
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Communities in this region should e
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have the resources to prepare for,
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Additional Resources• Sea Level R
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Timber practices have also had ecos
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Southeast Sierra RegionCounties: Al
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Biophysical CharacteristicsThe sout
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ultimately result in reduced water
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particular concern are populations
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Additional Resources• Sea Level R
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industry around Big Bear. As there
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California Natural Resources Agency
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