US Bridges

County Road 171 over Little Dry Creek

Fair

Union County, Mississippi · Sec 3 T 7S R 5E B · Structure no. SA7300000000104

Built
1984
41 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
111 ft
3 main spans
Daily traffic
630
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 171 over Little Dry Creek is a prestressed concrete stringer/multi-beam or girder carrying County Road 171 over Little Dry 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 630 vehicles a day, roughly 8% of them trucks, projected to reach 945 by 2042. The structure is 111 ft (33.8 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty Road 171
CrossesLittle Dry Creek
LocationSec 3 T 7S R 5E B
RouteCounty Highway 418
CountyUnion County
StateMississippi
Coordinates34.49754, -88.76732
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2022)
Projected traffic945 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 171 over Little Dry Creek built?

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

What condition is County Road 171 over Little Dry 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 171 over Little Dry Creek carry?

About 630 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is County Road 171 over Little Dry Creek?

The structure is 111 ft (33.8 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns County Road 171 over Little Dry Creek?

It is owned by the County Highway Agency.