US Bridges

US 3 over Nhrr

Fair

Coos County, New Hampshire · 0.6 MI from Vermont Sl · Structure no. 024100320014000

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
1 main span
Daily traffic
2,935
2023 count
Owner
State
State Highway Agency

About this bridge

US 3 over Nhrr is a steel stringer/multi-beam or girder carrying US 3 over Nhrr in Coos County, New Hampshire. It was built in 1970, so it is 55 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 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 2,935 vehicles a day, roughly 4% of them trucks, projected to reach 4,343 by 2043. The structure is 79 ft (24.1 m) long and 51 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS 3
CrossesNhrr
Location0.6 MI from Vermont Sl
RouteU.S. Route 3
CountyCoos County
StateNew Hampshire
Coordinates44.99125, -71.53198
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span72 ft (21.9 m)
Deck width51 ft (15.5 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,935 (2023)
Projected traffic4,343 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 3 over Nhrr built?

It was built in 1970, making it 55 years old in 2025.

What condition is US 3 over Nhrr 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 August 2024.

How much traffic does US 3 over Nhrr carry?

About 2,935 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 3 over Nhrr?

The structure is 79 ft (24.1 m) long with a longest span of 72 ft (21.9 m) and a deck 51 ft wide.

Who owns US 3 over Nhrr?

It is owned by the State Highway Agency.