US Bridges

SR1715 over Big Arm Creek

Fair

Johnston County, North Carolina · 0.9 Mi.N. of JCT.SR1700 · Structure no. 000000001010175

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
1,000
2022 count
Owner
State
State Highway Agency

About this bridge

SR1715 over Big Arm Creek is a prestressed concrete slab carrying SR1715 over Big Arm Creek in Johnston County, North Carolina. It was built in 1990, so it is 35 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,000 vehicles a day, roughly 6% of them trucks, projected to reach 2,000 by 2040. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR1715
CrossesBig Arm Creek
Location0.9 Mi.N. of JCT.SR1700
RouteState Highway 1715
CountyJohnston County
StateNorth Carolina
Coordinates35.70414, -78.41713
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating79.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic2,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1715 over Big Arm Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR1715 over Big Arm Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does SR1715 over Big Arm Creek carry?

About 1,000 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1715 over Big Arm Creek?

The structure is 90 ft (27.4 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns SR1715 over Big Arm Creek?

It is owned by the State Highway Agency.