US Bridges

Old Byram RD over Trahom Creek

PoorClosed to traffic

Hinds County, Mississippi · Sec 18 T 4N R 1E · Structure no. SA2500000000055

Built
1959
66 years old
Condition
Poor
inspected November 2024
Type
Channel Beam
Concrete
Length
135 ft
3 main spans
Daily traffic
400
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Byram RD over Trahom Creek is a concrete channel beam carrying Old Byram RD over Trahom Creek in Hinds County, Mississippi. It was built in 1959, so it is 66 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 1 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 400 vehicles a day, roughly 8% of them trucks, projected to reach 600 by 2044. The structure is 135 ft (41.1 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesOld Byram RD
CrossesTrahom Creek
LocationSec 18 T 4N R 1E
RouteCity Street 5471
Coordinates32.18246, -90.24218
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure1 Imminent FailureMajor deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic600 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$358,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Byram RD over Trahom Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Old Byram RD over Trahom Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Old Byram RD over Trahom Creek carry?

About 400 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Old Byram RD over Trahom Creek?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 25 ft wide.

Who owns Old Byram RD over Trahom Creek?

It is owned by the City or Municipal Highway Agency.