US Bridges

Mt Zion RD over I-69

Good

Obion County, Tennessee · Near Union City · Structure no. 66I00690023

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
360 ft
2 main spans
Daily traffic
587
2021 count
Owner
State
State Highway Agency

About this bridge

Mt Zion RD over I-69 is a steel continuous stringer/multi-beam or girder carrying Mt Zion RD over I-69 in Obion County, Tennessee. It was built in 2013, so it is 12 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 587 vehicles a day, roughly 3% of them trucks, projected to reach 960 by 2041. The structure is 360 ft (109.7 m) long and 31 ft wide.

CarriesMt Zion RD
CrossesI-69
LocationNear Union City
RouteCounty Highway 1534
Coordinates36.45765, -89.07246
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length360 ft (109.7 m)
Longest span180 ft (54.9 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic587 (2021)
Projected traffic960 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mt Zion RD over I-69 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Mt Zion RD over I-69 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Mt Zion RD over I-69 carry?

About 587 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Mt Zion RD over I-69?

The structure is 360 ft (109.7 m) long with a longest span of 180 ft (54.9 m) and a deck 31 ft wide.

Who owns Mt Zion RD over I-69?

It is owned by the State Highway Agency.