US Bridges

Chickwolnepy Road over Chickwolnepy Stream

PoorPosted for load

Coos County, New Hampshire · 1.2 M FR E. Side River RD · Structure no. 017002190012600

Built
1950
75 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chickwolnepy Road over Chickwolnepy Stream is a steel stringer/multi-beam or girder carrying Chickwolnepy Road over Chickwolnepy Stream in Coos County, New Hampshire. It was built in 1950, so it is 75 years old, older than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 96 vehicles a day, projected to reach 142 by 2043. The structure is 39 ft (11.8 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesChickwolnepy Road
CrossesChickwolnepy Stream
Location1.2 M FR E. Side River RD
Coordinates44.59401, -71.1636
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 16 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating11.7 US tons
Inventory rating8.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length39 ft (11.8 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width10 ft (3.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Chickwolnepy Road over Chickwolnepy Stream built?

It was built in 1950, making it 75 years old in 2025.

What condition is Chickwolnepy Road over Chickwolnepy Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Chickwolnepy Road over Chickwolnepy Stream carry?

About 96 vehicles per day (2023 count).

How long is Chickwolnepy Road over Chickwolnepy Stream?

The structure is 39 ft (11.8 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Chickwolnepy Road over Chickwolnepy Stream?

It is owned by the City or Municipal Highway Agency.