US Bridges

Pleasant Street over Mohawk River

Fair

Coos County, New Hampshire · 280 Feet FR US RTE 3 · Structure no. 005000500009900

Built
1972
53 years old
Condition
Fair
inspected September 2024
Type
Frame
Concrete
Length
72 ft
1 main span
Daily traffic
522
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pleasant Street over Mohawk River is a concrete frame carrying Pleasant Street over Mohawk River in Coos County, New Hampshire. It was built in 1972, so it is 53 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 5 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 522 vehicles a day, roughly 4% of them trucks, projected to reach 772 by 2043. The structure is 72 ft (21.9 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPleasant Street
CrossesMohawk River
Location280 Feet FR US RTE 3
Coordinates44.8941, -71.49551
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating50.4 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length72 ft (21.9 m)
Longest span64 ft (19.5 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic522 (2023)
Projected traffic772 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Pleasant Street over Mohawk River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Pleasant Street over Mohawk River 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 September 2024.

How much traffic does Pleasant Street over Mohawk River carry?

About 522 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Pleasant Street over Mohawk River?

The structure is 72 ft (21.9 m) long with a longest span of 64 ft (19.5 m) and a deck 37 ft wide.

Who owns Pleasant Street over Mohawk River?

It is owned by the City or Municipal Highway Agency.