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Guide

Roof Damage or River Flooding? Telling the Difference Along the Delaware

Wind and river flooding are different claims. Belvidere and Easton-Phillipsburg flood history, and how roof damage in Warren County is documented and handled.

Illustration for the guide "Roof Damage or River Flooding? Telling the Difference Along the Delaware" (Washington, NJ)
Short answer

Roof damage comes from wind, limbs, hail or age and lets water in from above. River flooding comes from the Delaware rising and enters from below. They are different causes with different documentation and usually different claims. The National Weather Service gauges at Belvidere and Easton-Phillipsburg record the flooding.

Key takeaways

  • Roof damage lets water in from above; river flooding enters from below, and the two are documented and handled as separate events.
  • At Belvidere the flood stage is 22 feet, and the gauge crested at 27.22 feet on April 4, 2005 and 27.16 feet on June 29, 2006, per the National Weather Service.
  • At Easton-Phillipsburg the flood stage is 22 feet; about 35.0 feet was estimated on April 4, 2005, 25.15 feet was reached on August 29, 2011 and 29.23 feet on September 9, 2011.
  • These are river levels, not roof damage figures, and no Belvidere crest is stated here for Irene or Lee because none was sourced.
  • Ask your insurer which part of your policy applies to each cause, and photograph each kind of damage separately with its date.

How are roof damage and river flooding different?

Roof damage is caused by wind, falling limbs, hail or wear and admits water from above, through shingles, flashing or a hole. River flooding is caused by the Delaware or a tributary rising over its banks and admits water at ground level. Different causes lead to different repairs and different claims.

The difference matters because the repairs, the trades and the paperwork are separate. A roofer deals with the first. Water extraction, drying and structural repair after a flood is a different kind of work, and it is not what this line connects you with.

Some storms bring both: strong wind on the roof and heavy rain feeding the river. Treat them as two events in your records, with separate photographs, dates and notes.

What flood history do Belvidere and Easton-Phillipsburg have?

At Belvidere, the National Weather Service gauge, with a flood stage of 22 feet, crested at 27.22 feet on April 4, 2005 and 27.16 feet on June 29, 2006. At Easton-Phillipsburg, also 22 feet, about 35.0 feet was estimated in April 2005, and 25.15 and 29.23 feet were reached in August and September 2011.

The Easton-Phillipsburg gauge also records historic levels: 43.7 feet on August 19, 1955 and 33.5 feet on September 19, 2004. The 2011 figures came from Irene on August 29 and Lee on September 9.

Belvidere's crests for Irene and Lee were not sourced, so none is stated here. The point of the numbers is to show that the Delaware has risen well above flood stage several times in recent decades, which is a flood fact and not a roof fact.

None of this tells you about any single roof. A house on high ground a few streets from the river may never see water in the basement, while a house on the bank may. The numbers are useful for knowing that the river has been well above flood stage more than once in recent decades, and for reading local news when it rises.

Delaware River gauge readings named by the National Weather Service. Flood stage is 22 feet at both gauges. These describe the river, not roofs.
GaugeDateLevel
BelvidereApril 4, 200527.22 ft crest
BelvidereJune 29, 200627.16 ft crest
Easton-PhillipsburgApril 4, 2005About 35.0 ft estimated
Easton-PhillipsburgAugust 29, 2011 (Irene)25.15 ft
Easton-PhillipsburgSeptember 9, 2011 (Lee)29.23 ft
Easton-PhillipsburgAugust 19, 195543.7 ft historic
Easton-PhillipsburgSeptember 19, 200433.5 ft

Which towns are affected?

Belvidere, the Warren County seat, lies on the Delaware, and Phillipsburg faces Easton, Pennsylvania across it. Bloomsbury, Delaware and other riverside places are close to the river too. Towns inland, such as Washington Borough, are not on the Delaware, though heavy rain affects roofs everywhere.

Belvidere was chosen as the county seat on April 20, 1825. It sits near where the Pequest meets the Delaware. Phillipsburg had a 2020 population base of 15,252 and about 6,659 housing units, per the Census Bureau, a denser fabric than most of the county.

Easton, the Northampton County seat in Pennsylvania, had 28,127 residents in 2020. Both sides of the river have long-standing flood stories, and both have roofs that take wind and ice like any other.

The area pages for Belvidere, Phillipsburg and Easton put the river in the context of each town. Washington Borough and the hill towns sit away from the Delaware, so for them the river is a regional story, while ice, wind and snow are the everyday roof story.

How are the claims handled differently?

Wind damage to a roof is typically a homeowners-policy matter. River flooding is generally excluded from standard policies and handled under separate flood cover. Read your policy, and ask your insurer which cause falls under which cover. This line cannot say how a particular claim will be decided.

Because the cause decides the cover, the records matter. If wind took shingles off and the river reached the basement in the same week, photographs and notes should keep them apart.

The page on insurance storm claim help explains what to document for the roof side. For the flood side, your insurer and the agencies that handle flood claims are the right contacts.

Timing differs as well. A roof leak is often discovered after the storm, when a stain appears, while flood damage is obvious at once. Report each when you find it, and say plainly when you first noticed it. Policies set their own time limits, and reading yours today is better than reading it in the middle of a dispute.

If a contractor or anyone else tells you that a flood loss will be paid as a roof loss, or the reverse, ask them to show you in the policy. The wording is what counts.

How do I tell whether a stain is from the roof or from the river?

Look at where and when. Stains on ceilings and upper walls, following rain, wind or a thaw, point to the roof. Water marks low on walls, wet floors and a damp basement following high water outside point to flooding. The two can happen in the same house in the same week.

Direction is the simplest clue. Roof water comes down; flood water comes up. Roof leaks show first on the top floor and in the attic, and flood water shows first at ground level.

If you are unsure, photograph everything and describe it as you found it. A roofer can say what the roof evidence looks like, and your insurer or a flood specialist can assess the rest. Do not guess in writing, since a confident wrong guess in a claim is hard to take back.

Why do big river events often come with roof problems too?

Because the storms that raise the Delaware also bring wind, heavy rain and falling limbs. Flashing, valleys and skylights that coped with ordinary rain can leak under a deluge, and trees weakened by wet ground come down. Check the roof after any event that put the river in the news.

The 2011 readings come from Irene and Lee, two storms that arrived about eleven days apart. Roofs that took the first can leak under the second, and a leak that began as a drip can become a stain by the end of the second storm.

The pattern holds for any large storm: the weather that fills rivers also tests roofs. That is a general observation and not a record of roof damage in any particular town, since none is documented here.

After a regional flood, roofers are busy. Call, describe what you see and note that roads or access may be difficult. The roofer will say what is practical.

If water got in through the roof as well as from below, tell the roofer and your insurer, and keep each set of photographs separate. See roof leak repair.

What records should I keep for each kind of damage?

Keep separate sets: roof damage with dated photographs of shingles, flashing, debris and ceiling stains, and flood damage with photographs of water marks, floors and belongings. Add receipts, notes of calls and the policy numbers. Separate sets stop two causes from being confused in a claim.

Use the table below as a checklist. It takes a few minutes and saves hours later.

Where the same room shows both, say so, and describe which came first if you know.

Keep two sets of records. This is a checklist; it is not a prediction of how a claim will be handled.
Kind of damagePhotographAlso keep
Roof damageRoof from the ground, debris, ceilings, atticRoofer's written findings, tarp receipts
River floodingWater marks, floors, belongings, outside levelsReceipts for drying and cleanup, any official flood notice
BothEach separately, with datesNotes saying which came first

Who do I call for what after a storm near the river?

For the roof, call the roofer. For the policy, call your insurer. For power lines, the utility. For standing water and drying, a restoration specialist, which this line does not provide. Sorting the calls by cause keeps each problem with the people who deal with it.

The call line connects you with an independent local roofer for roof problems: tarping, leaks, storm repairs. It does not handle water removal, mold or structural drying after a flood. Say so plainly when you call, so you are not left waiting for the wrong help.

If you are unsure what a problem is, describe it. The roofer will say whether it is something a roofer fixes. Keep a short list of numbers by the phone: your insurer, the utility and your town's office.

New Jersey registration numbers begin with 13VH, and Pennsylvania registrations are issued by the Attorney General once annual work reaches $5,000. Requirements can change, so check the current rule.

Ask also how the roofer reaches your street when roads are closed or flooded. In a bad event, access is a real constraint, and an honest answer is better than a promise.

Frequently asked questions

Does homeowners insurance cover river flooding?

Standard policies usually exclude it. Flood cover is separate. Read your documents or ask your insurer.

Is my roof at risk from the Delaware?

A river does not flood a roof. The roof is at risk from wind, limbs, ice and wear. The river affects ground floors and basements.

Can a roofer help with flood damage?

A roofer deals with the roof. Water removal and structural drying after a flood are different work.

Where do these figures come from?

They are National Weather Service river gauge readings, which describe the river, not roof damage.

What if both happen in one storm?

Document them as two events, with separate photographs and notes, and tell your insurer about both.

Sources

  1. National Weather Service – Mid-Atlantic River Forecast Center (Belvidere and Easton gauges)
  2. U.S. Census Bureau – QuickFacts

This guide is general information for Warren County homeowners, not a substitute for an on-site inspection. Prices are estimates. See our disclaimer.

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