US Bridges

NH153 over Cocheco River

Good

Strafford County, New Hampshire · .8 MI from Jct. Nh 11 · Structure no. 008400960014100

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
1,167
2023 count
Owner
State
State Highway Agency

About this bridge

NH153 over Cocheco River is a prestressed concrete tee beam carrying NH153 over Cocheco River in Strafford County, New Hampshire. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,167 vehicles a day, roughly 10% of them trucks, projected to reach 1,727 by 2043. The structure is 76 ft (23.2 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNH153
CrossesCocheco River
Location.8 MI from Jct. Nh 11
RouteState Highway 153
Coordinates43.38728, -71.06089
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating64.6 US tons
Inventory rating49.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length76 ft (23.2 m)
Longest span71 ft (21.6 m)
Deck width40 ft (12.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic1,167 (2023)
Projected traffic1,727 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
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 NH153 over Cocheco River built?

It was built in 2018, making it 7 years old in 2025.

What condition is NH153 over Cocheco River 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 2024.

How much traffic does NH153 over Cocheco River carry?

About 1,167 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NH153 over Cocheco River?

The structure is 76 ft (23.2 m) long with a longest span of 71 ft (21.6 m) and a deck 40 ft wide.

Who owns NH153 over Cocheco River?

It is owned by the State Highway Agency.