US Bridges

County Road 47 over Mill Creek

Fair

Union County, Mississippi · Sec 12 T 8S R 1E B · Structure no. SA7300000000113

Built
1984
41 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
520
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 47 over Mill Creek is a prestressed concrete stringer/multi-beam or girder carrying County Road 47 over Mill Creek in Union County, Mississippi. It was built in 1984, so it is 41 years old, older than the Mississippi average of 38.9 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 520 vehicles a day, roughly 8% of them trucks, projected to reach 780 by 2042. The structure is 120 ft (36.6 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty Road 47
CrossesMill Creek
LocationSec 12 T 8S R 1E B
RouteCounty Highway 922
CountyUnion County
StateMississippi
Coordinates34.39796, -89.15216
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 rating50.4 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2022)
Projected traffic780 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 47 over Mill Creek built?

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

What condition is County Road 47 over Mill 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 November 2023.

How much traffic does County Road 47 over Mill Creek carry?

About 520 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is County Road 47 over Mill Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns County Road 47 over Mill Creek?

It is owned by the County Highway Agency.