US Bridges

SR1603 over Sapony Creek

Poor

Nash County, North Carolina · 1.2 MI.N.OF.SR1745 · Structure no. 000000001270044

Built
1970
55 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
3 main spans
Daily traffic
1,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1603 over Sapony Creek is a steel stringer/multi-beam or girder carrying SR1603 over Sapony Creek in Nash County, North Carolina. It was built in 1970, so it is 55 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 1,500 vehicles a day, roughly 6% of them trucks, projected to reach 3,000 by 2040. The structure is 177 ft (53.9 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSR1603
CrossesSapony Creek
Location1.2 MI.N.OF.SR1745
RouteState Highway 1630
Coordinates35.88543, -77.91153
Functional classRural Minor Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating38.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length177 ft (53.9 m)
Longest span57 ft (17.3 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2021)
Projected traffic3,000 by 2040
Trucks6%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1603 over Sapony Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR1603 over Sapony Creek 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 June 2024.

How much traffic does SR1603 over Sapony Creek carry?

About 1,500 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1603 over Sapony Creek?

The structure is 177 ft (53.9 m) long with a longest span of 57 ft (17.3 m) and a deck 38 ft wide.

Who owns SR1603 over Sapony Creek?

It is owned by the State Highway Agency.