US Bridges

US302 over Crawford Brook

Fair

Coos County, New Hampshire · 2.4MI E Harts Locat.T/L · Structure no. 003902020016300

Built
1965
60 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
3,842
2023 count
Owner
State
State Highway Agency

About this bridge

US302 over Crawford Brook is a concrete culvert carrying US302 over Crawford Brook in Coos County, New Hampshire. It was built in 1965, so it is 60 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 3,842 vehicles a day, roughly 7% of them trucks, projected to reach 5,686 by 2043. The structure is 22 ft (6.7 m) long and 72 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

Location

Open in Google Maps
CarriesUS302
CrossesCrawford Brook
Location2.4MI E Harts Locat.T/L
RouteU.S. Route 302
CountyCoos County
StateNew Hampshire
Coordinates44.24312, -71.4303
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.7 US tons
Inventory rating57.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width72 ft (22 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,842 (2023)
Projected traffic5,686 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 km)
TollOn a free road
National Highway SystemYes

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 US302 over Crawford Brook built?

It was built in 1965, making it 60 years old in 2025.

What condition is US302 over Crawford Brook 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 June 2023.

How much traffic does US302 over Crawford Brook carry?

About 3,842 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US302 over Crawford Brook?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 72 ft wide.

Who owns US302 over Crawford Brook?

It is owned by the State Highway Agency.