US Bridges

US 3 over Perry Stream Overflow

Good

Coos County, New Hampshire · 5.0 MI East NH145 · Structure no. 021001310005800

Built
1996
29 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
1,586
2023 count
Owner
State
State Highway Agency

About this bridge

US 3 over Perry Stream Overflow is a concrete culvert carrying US 3 over Perry Stream Overflow in Coos County, New Hampshire. It was built in 1996, so it is 29 years old, younger than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,586 vehicles a day, roughly 4% of them trucks, projected to reach 2,347 by 2043. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS 3
CrossesPerry Stream Overflow
Location5.0 MI East NH145
RouteU.S. Route 3
Coordinates45.08525, -71.31921
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,586 (2023)
Projected traffic2,347 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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 US 3 over Perry Stream Overflow built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 3 over Perry Stream Overflow in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does US 3 over Perry Stream Overflow carry?

About 1,586 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 3 over Perry Stream Overflow?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns US 3 over Perry Stream Overflow?

It is owned by the State Highway Agency.