US Bridges

Nfa 1630 (sa 5720) over Lacy Creek

Fair

Madison County, Tennessee · 1.8 MI NE JCT SR18&HARDEM · Structure no. 57016300001

Built
1990
35 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
55 ft
3 main spans
Daily traffic
646
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1630 (sa 5720) over Lacy Creek is a concrete continuous culvert carrying Nfa 1630 (sa 5720) over Lacy Creek in Madison County, Tennessee. It was built in 1990, so it is 35 years old, younger than the Tennessee average of 47.4 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 646 vehicles a day, roughly 3% of them trucks, projected to reach 816 by 2041. The structure is 55 ft (16.8 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesNfa 1630 (sa 5720)
CrossesLacy Creek
Location1.8 MI NE JCT SR18&HARDEM
RouteCounty Highway 1630
CountyMadison County
StateTennessee
Coordinates35.44608, -88.85731
Functional classRural Minor 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic646 (2021)
Projected traffic816 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1630 (sa 5720) over Lacy Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa 1630 (sa 5720) over Lacy 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 May 2023.

How much traffic does Nfa 1630 (sa 5720) over Lacy Creek carry?

About 646 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1630 (sa 5720) over Lacy Creek?

The structure is 55 ft (16.8 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns Nfa 1630 (sa 5720) over Lacy Creek?

It is owned by the County Highway Agency.