US Bridges

Northshore Prkwy. over Spring Branch

Fair

Rankin County, Mississippi · Sec 3 T 6N R 3E B · Structure no. SA6100000000122

Built
1964
61 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
5,300
2024 count
Owner
County
County Highway Agency

About this bridge

Northshore Prkwy. over Spring Branch is a concrete slab carrying Northshore Prkwy. over Spring Branch in Rankin County, Mississippi. It was built in 1964, so it is 61 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 5 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 5,300 vehicles a day, roughly 10% of them trucks, projected to reach 7,950 by 2044. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNorthshore Prkwy.
CrossesSpring Branch
LocationSec 3 T 6N R 3E B
RouteCounty Highway 91
Coordinates32.39694, -89.97664
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2024)
Projected traffic7,950 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$208,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Northshore Prkwy. over Spring Branch built?

It was built in 1964, making it 61 years old in 2025.

What condition is Northshore Prkwy. over Spring 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 November 2023.

How much traffic does Northshore Prkwy. over Spring Branch carry?

About 5,300 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Northshore Prkwy. over Spring Branch?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Northshore Prkwy. over Spring Branch?

It is owned by the County Highway Agency.