US Bridges

Morrill Street over US 3 Nh 11 Bypass

Good

Belknap County, New Hampshire · 2.5 MI from Laconia Tl · Structure no. 009101300006600

Built
1965
60 years old
Condition
Good
inspected May 2023
Type
Frame
Concrete
Length
59 ft
1 main span
Daily traffic
1,011
2023 count
Owner
State
State Highway Agency

About this bridge

Morrill Street over US 3 Nh 11 Bypass is a concrete frame carrying Morrill Street over US 3 Nh 11 Bypass in Belknap 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 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 1,011 vehicles a day, roughly 4% of them trucks, projected to reach 1,496 by 2043. The structure is 59 ft (18 m) long and 32 ft wide.

CarriesMorrill Street
CrossesUS 3 Nh 11 Bypass
Location2.5 MI from Laconia Tl
Coordinates43.55472, -71.43216
Functional classUrban Local

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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length59 ft (18 m)
Longest span51 ft (15.5 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,011 (2023)
Projected traffic1,496 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Morrill Street over US 3 Nh 11 Bypass built?

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

What condition is Morrill Street over US 3 Nh 11 Bypass 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 May 2023.

How much traffic does Morrill Street over US 3 Nh 11 Bypass carry?

About 1,011 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Morrill Street over US 3 Nh 11 Bypass?

The structure is 59 ft (18 m) long with a longest span of 51 ft (15.5 m) and a deck 32 ft wide.

Who owns Morrill Street over US 3 Nh 11 Bypass?

It is owned by the State Highway Agency.