US Bridges

Middle RD over 14 Mile Creek

Fair

Hinds County, Mississippi · Sec 21 T 5N R 4W B · Structure no. SA2500000000187

Built
1979
46 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
6 main spans
Daily traffic
270
2023 count
Owner
County
County Highway Agency

About this bridge

Middle RD over 14 Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying Middle RD over 14 Mile Creek in Hinds County, Mississippi. It was built in 1979, so it is 46 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 270 vehicles a day, roughly 8% of them trucks, projected to reach 405 by 2043. The structure is 280 ft (85.3 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesMiddle RD
Crosses14 Mile Creek
LocationSec 21 T 5N R 4W B
RouteCounty Highway 407
Coordinates32.26333, -90.6223
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.1 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span80 ft (24.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2023)
Projected traffic405 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Middle RD over 14 Mile Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Middle RD over 14 Mile 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 April 2023.

How much traffic does Middle RD over 14 Mile Creek carry?

About 270 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Middle RD over 14 Mile Creek?

The structure is 280 ft (85.3 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.

Who owns Middle RD over 14 Mile Creek?

It is owned by the County Highway Agency.