US Bridges

US 3 over Indian Stream

Good

Coos County, New Hampshire · 2.5 MI N of Clarksvilletl · Structure no. 021000700003200

Built
1976
49 years old, rebuilt 2014
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
1,342
2023 count
Owner
State
State Highway Agency

About this bridge

US 3 over Indian Stream is a steel stringer/multi-beam or girder carrying US 3 over Indian Stream in Coos County, New Hampshire. It was built in 1976 and reconstructed in 2014, so it is 49 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 1,342 vehicles a day, roughly 4% of them trucks, projected to reach 1,986 by 2043. The structure is 94 ft (28.7 m) long and 36 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesUS 3
CrossesIndian Stream
Location2.5 MI N of Clarksvilletl
RouteU.S. Route 3
CountyCoos County
StateNew Hampshire
Coordinates45.047, -71.44202
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.8 US tons
Inventory rating53.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span90 ft (27.4 m)
Deck width36 ft (11 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,342 (2023)
Projected traffic1,986 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 3 over Indian Stream built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2014.

What condition is US 3 over Indian Stream 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 August 2024.

How much traffic does US 3 over Indian Stream carry?

About 1,342 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 3 over Indian Stream?

The structure is 94 ft (28.7 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns US 3 over Indian Stream?

It is owned by the State Highway Agency.