US Bridges

Rock Spring Road over Green Mill Run

Poor

Pitt County, North Carolina · .1 MI.S.JCT.10th Street · Structure no. 000000001470096

Built
1950
75 years old
Condition
Poor
inspected March 2024
Type
Culvert
Steel
Length
32 ft
2 main spans
Daily traffic
500
1990 count
Owner
City
City or Municipal Highway Agency

About this bridge

Rock Spring Road over Green Mill Run is a steel culvert carrying Rock Spring Road over Green Mill Run in Pitt County, North Carolina. It was built in 1950, so it is 75 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 500 vehicles a day, roughly 7% of them trucks, projected to reach 1,000 by 2040. The structure is 32 ft (9.7 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRock Spring Road
CrossesGreen Mill Run
Location.1 MI.S.JCT.10th Street
RouteCity Street 0
CountyPitt County
StateNorth Carolina
Coordinates35.60412, -77.36476
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length32 ft (9.7 m)
Longest span15 ft (4.5 m)
Deck width38 ft (11.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1990)
Projected traffic1,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Spring Road over Green Mill Run built?

It was built in 1950, making it 75 years old in 2025.

What condition is Rock Spring Road over Green Mill Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Rock Spring Road over Green Mill Run carry?

About 500 vehicles per day (1990 count), of which roughly 7% are trucks.

How long is Rock Spring Road over Green Mill Run?

The structure is 32 ft (9.7 m) long with a longest span of 15 ft (4.5 m) and a deck 38 ft wide.

Who owns Rock Spring Road over Green Mill Run?

It is owned by the City or Municipal Highway Agency.