US Bridges

SR1642 over SR3097

Good

Wake County, North Carolina · 0.3 E. of Jct. SR 1789 · Structure no. 000000001830942

Built
1999
26 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
223 ft
2 main spans
Daily traffic
7,200
1999 count
Owner
State
State Highway Agency

About this bridge

SR1642 over SR3097 is a steel continuous stringer/multi-beam or girder carrying SR1642 over SR3097 in Wake County, North Carolina. It was built in 1999, so it is 26 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 7,200 vehicles a day, roughly 7% of them trucks, projected to reach 14,400 by 2040. The structure is 223 ft (67.9 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1642
CrossesSR3097
Location0.3 E. of Jct. SR 1789
RouteState Highway 1642
Coordinates35.88295, -78.81006
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89.9 US tons
Inventory rating53.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length223 ft (67.9 m)
Longest span118 ft (35.9 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (1999)
Projected traffic14,400 by 2040
Trucks7%
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1642 over SR3097 built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR1642 over SR3097 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 SR1642 over SR3097 carry?

About 7,200 vehicles per day (1999 count), of which roughly 7% are trucks.

How long is SR1642 over SR3097?

The structure is 223 ft (67.9 m) long with a longest span of 118 ft (35.9 m) and a deck 34 ft wide.

Who owns SR1642 over SR3097?

It is owned by the State Highway Agency.