US Bridges

SR1820 over Mine Creek

Good

Wake County, North Carolina · 0.3 Mi. N. Jct. SR1819 · Structure no. 000000001830099

Built
1998
27 years old
Condition
Good
inspected June 2021
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
16,000
2018 count
Owner
State
State Highway Agency

About this bridge

SR1820 over Mine Creek is a concrete continuous culvert carrying SR1820 over Mine Creek in Wake County, North Carolina. It was built in 1998, so it is 27 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 16,000 vehicles a day, roughly 7% of them trucks, projected to reach 32,000 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1820
CrossesMine Creek
Location0.3 Mi. N. Jct. SR1819
RouteState Highway 1820
Coordinates35.87544, -78.66185
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2018)
Projected traffic32,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SR1820 over Mine Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR1820 over Mine 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 2021.

How much traffic does SR1820 over Mine Creek carry?

About 16,000 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is SR1820 over Mine Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SR1820 over Mine Creek?

It is owned by the State Highway Agency.