US Bridges

SR1770 over I-95

Good

Nash County, North Carolina · 0.7 MI W JCT SR1544 · Structure no. 000000001270200

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
302 ft
4 main spans
Daily traffic
5,750
2021 count
Owner
State
State Highway Agency

About this bridge

SR1770 over I-95 is a prestressed concrete slab carrying SR1770 over I-95 in Nash County, North Carolina. It was built in 2023, so it is 2 years old, younger than the North Carolina average of 38.7 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 5,750 vehicles a day, roughly 6% of them trucks, projected to reach 11,500 by 2040. The structure is 302 ft (92 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1770
CrossesI-95
Location0.7 MI W JCT SR1544
RouteState Highway 1770
Coordinates35.96873, -77.88192
Functional classUrban Minor Arterial

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.9 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHL 93
Structure length302 ft (92 m)
Longest span79 ft (24 m)
Deck width77 ft (23.6 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,750 (2021)
Projected traffic11,500 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1770 over I-95 built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR1770 over I-95 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 November 2023.

How much traffic does SR1770 over I-95 carry?

About 5,750 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1770 over I-95?

The structure is 302 ft (92 m) long with a longest span of 79 ft (24 m) and a deck 77 ft wide.

Who owns SR1770 over I-95?

It is owned by the State Highway Agency.