US Bridges

NC97 over Mocassin Creek

Good

Wake County, North Carolina · 0.5 Mi. E. Jct. NC39 · Structure no. 000000001830020

Built
2017
8 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
107 ft
1 main span
Daily traffic
3,200
2021 count
Owner
State
State Highway Agency

About this bridge

NC97 over Mocassin Creek is a prestressed concrete box beam or girders - multiple carrying NC97 over Mocassin Creek in Wake County, North Carolina. It was built in 2017, so it is 8 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 3,200 vehicles a day, roughly 8% of them trucks, projected to reach 6,400 by 2040. The structure is 107 ft (32.6 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNC97
CrossesMocassin Creek
Location0.5 Mi. E. Jct. NC39
RouteState Highway 97
Coordinates35.83494, -78.26094
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating51.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length107 ft (32.6 m)
Longest span104 ft (31.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2021)
Projected traffic6,400 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NC97 over Mocassin Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is NC97 over Mocassin Creek 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 June 2024.

How much traffic does NC97 over Mocassin Creek carry?

About 3,200 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is NC97 over Mocassin Creek?

The structure is 107 ft (32.6 m) long with a longest span of 104 ft (31.6 m) and a deck 33 ft wide.

Who owns NC97 over Mocassin Creek?

It is owned by the State Highway Agency.