US Bridges

Spillway Rd. over Mill Creek

PoorPosted for load

Rankin County, Mississippi · Sec_ 8_T 6N_R 3E · Structure no. SA6100000000125

Built
1970
55 years old
Condition
Poor
inspected October 2023
Type
Tee Beam
Concrete
Length
123 ft
4 main spans
Daily traffic
7,500
2024 count
Owner
County
County Highway Agency

About this bridge

Spillway Rd. over Mill Creek is a concrete tee beam carrying Spillway Rd. over Mill Creek in Rankin County, Mississippi. It was built in 1970, so it is 55 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 4 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: posted for load restriction.

It carries about 7,500 vehicles a day, roughly 8% of them trucks, projected to reach 11,250 by 2044. The structure is 123 ft (37.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSpillway Rd.
CrossesMill Creek
LocationSec_ 8_T 6N_R 3E
RouteCounty Highway 92
Coordinates32.37233, -90.01244
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating34.5 US tons
Inventory rating20.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length123 ft (37.5 m)
Longest span31 ft (9.3 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2024)
Projected traffic11,250 by 2044
Trucks8%
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$212,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Spillway Rd. over Mill Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Spillway Rd. over Mill 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 October 2023.

How much traffic does Spillway Rd. over Mill Creek carry?

About 7,500 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Spillway Rd. over Mill Creek?

The structure is 123 ft (37.5 m) long with a longest span of 31 ft (9.3 m) and a deck 28 ft wide.

Who owns Spillway Rd. over Mill Creek?

It is owned by the County Highway Agency.