US Bridges

Parker Road over S Br Piscataquog River

Fair

Hillsborough County, New Hampshire · 177 Ft FR River Road · Structure no. 017901550015600

Built
1937
88 years old, rebuilt 2003
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
114 ft
3 main spans
Daily traffic
1,201
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Parker Road over S Br Piscataquog River is a wood or timber stringer/multi-beam or girder carrying Parker Road over S Br Piscataquog River in Hillsborough County, New Hampshire. It was built in 1937 and reconstructed in 2003, so it is 88 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,201 vehicles a day, roughly 4% of them trucks, projected to reach 1,777 by 2043. The structure is 114 ft (34.7 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesParker Road
CrossesS Br Piscataquog River
Location177 Ft FR River Road
Coordinates43.01513, -71.64134
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.4 US tons
Inventory rating50.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 25 or greater
Structure length114 ft (34.7 m)
Longest span49 ft (14.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,201 (2023)
Projected traffic1,777 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Parker Road over S Br Piscataquog River built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2003.

What condition is Parker Road over S Br Piscataquog River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Parker Road over S Br Piscataquog River carry?

About 1,201 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Parker Road over S Br Piscataquog River?

The structure is 114 ft (34.7 m) long with a longest span of 49 ft (14.8 m) and a deck 28 ft wide.

Who owns Parker Road over S Br Piscataquog River?

It is owned by the City or Municipal Highway Agency.