US Bridges

SR1136 over Mill Creek Overflow

Fair

Johnston County, North Carolina · 0.5 Mi. E. of Jct. US 701 · Structure no. 000000001010039

Built
2014
11 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
92 ft
2 main spans
Daily traffic
650
2019 count
Owner
State
State Highway Agency

About this bridge

SR1136 over Mill Creek Overflow is a prestressed concrete slab carrying SR1136 over Mill Creek Overflow in Johnston County, North Carolina. It was built in 2014, so it is 11 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 6 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 650 vehicles a day, roughly 6% of them trucks, projected to reach 1,300 by 2040. The structure is 92 ft (28 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1136
CrossesMill Creek Overflow
Location0.5 Mi. E. of Jct. US 701
RouteState Highway 1136
Coordinates35.31383, -78.35289
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating76.9 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length92 ft (28 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2019)
Projected traffic1,300 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR1136 over Mill Creek Overflow built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR1136 over Mill Creek Overflow 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 August 2024.

How much traffic does SR1136 over Mill Creek Overflow carry?

About 650 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1136 over Mill Creek Overflow?

The structure is 92 ft (28 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns SR1136 over Mill Creek Overflow?

It is owned by the State Highway Agency.