US Bridges

Nfa 1930 (sa 9413) over Mccrorys Branch

Fair

Williamson County, Tennessee · 3.7 MI NW JCT SR11&SR16 · Structure no. 94019300001

Built
1997
28 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
785
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1930 (sa 9413) over Mccrorys Branch is a prestressed concrete box beam or girders - single or spread carrying Nfa 1930 (sa 9413) over Mccrorys Branch in Williamson County, Tennessee. It was built in 1997, so it is 28 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 785 vehicles a day, roughly 3% of them trucks, projected to reach 992 by 2041. The structure is 67 ft (20.4 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesNfa 1930 (sa 9413)
CrossesMccrorys Branch
Location3.7 MI NW JCT SR11&SR16
RouteCounty Highway 1930
CountyWilliamson County
StateTennessee
Coordinates35.82592, -86.72335
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic785 (2021)
Projected traffic992 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Nfa 1930 (sa 9413) over Mccrorys Branch built?

It was built in 1997, making it 28 years old in 2025.

What condition is Nfa 1930 (sa 9413) over Mccrorys 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 April 2023.

How much traffic does Nfa 1930 (sa 9413) over Mccrorys Branch carry?

About 785 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1930 (sa 9413) over Mccrorys Branch?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns Nfa 1930 (sa 9413) over Mccrorys Branch?

It is owned by the County Highway Agency.