US Bridges

SR1628 over Little River Lake

Fair

Durham County, North Carolina · 0.1 MI W JCT SR1627 · Structure no. 000000000630004

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
680 ft
8 main spans
Daily traffic
2,800
2021 count
Owner
State
State Highway Agency

About this bridge

SR1628 over Little River Lake is a prestressed concrete stringer/multi-beam or girder carrying SR1628 over Little River Lake in Durham County, North Carolina. It was built in 1984, so it is 41 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 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 2,800 vehicles a day, roughly 7% of them trucks, projected to reach 5,600 by 2040. The structure is 680 ft (207.2 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1628
CrossesLittle River Lake
Location0.1 MI W JCT SR1627
RouteState Highway 1628
Coordinates36.12791, -78.87412
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 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 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 rating99 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length680 ft (207.2 m)
Longest span83 ft (25.2 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2021)
Projected traffic5,600 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR1628 over Little River Lake built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR1628 over Little River Lake 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 February 2024.

How much traffic does SR1628 over Little River Lake carry?

About 2,800 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1628 over Little River Lake?

The structure is 680 ft (207.2 m) long with a longest span of 83 ft (25.2 m) and a deck 30 ft wide.

Who owns SR1628 over Little River Lake?

It is owned by the State Highway Agency.