US Bridges

US302 over Nhrr

Fair

Carroll County, New Hampshire · 4.2 Mi.Bartlett T.L. · Structure no. 011601970007700

Built
1978
47 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
3 main spans
Daily traffic
1,978
2023 count
Owner
State
State Highway Agency

About this bridge

US302 over Nhrr is a steel continuous stringer/multi-beam or girder carrying US302 over Nhrr in Carroll County, New Hampshire. It was built in 1978, so it is 47 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 1,978 vehicles a day, roughly 7% of them trucks, projected to reach 2,927 by 2043. The structure is 222 ft (67.7 m) long and 47 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

Location

Open in Google Maps
CarriesUS302
CrossesNhrr
Location4.2 Mi.Bartlett T.L.
RouteU.S. Route 302
CountyCarroll County
StateNew Hampshire
Coordinates44.1134, -71.35402
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.3 US tons
Inventory rating33.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length222 ft (67.7 m)
Longest span80 ft (24.4 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,978 (2023)
Projected traffic2,927 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US302 over Nhrr built?

It was built in 1978, making it 47 years old in 2025.

What condition is US302 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 May 2024.

How much traffic does US302 over Nhrr carry?

About 1,978 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US302 over Nhrr?

The structure is 222 ft (67.7 m) long with a longest span of 80 ft (24.4 m) and a deck 47 ft wide.

Who owns US302 over Nhrr?

It is owned by the State Highway Agency.