US Bridges

County Road 4300 over Murphy Branch

Fair

Neshoba County, Mississippi · Sec 17 T 9N R13E B · Structure no. SA5000000000033

Built
1985
40 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
490
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 4300 over Murphy Branch is a concrete culvert carrying County Road 4300 over Murphy Branch in Neshoba County, Mississippi. It was built in 1985, so it is 40 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 490 vehicles a day, roughly 8% of them trucks, projected to reach 600 by 2041. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Road 4300
CrossesMurphy Branch
LocationSec 17 T 9N R13E B
RouteCounty Highway 437
CountyNeshoba County
StateMississippi
Coordinates32.63206, -88.98444
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic490 (2021)
Projected traffic600 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 4300 over Murphy Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 4300 over Murphy Branch 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 2023.

How much traffic does County Road 4300 over Murphy Branch carry?

About 490 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is County Road 4300 over Murphy Branch?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns County Road 4300 over Murphy Branch?

It is owned by the County Highway Agency.