US Bridges

605 TH Road over Jacks Branch

Fair

Gentry County, Missouri · S 1 T 62 N R 30 W · Structure no. 18915

Built
1992
33 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

605 TH Road over Jacks Branch is a steel stringer/multi-beam or girder carrying 605 TH Road over Jacks Branch in Gentry County, Missouri. It was built in 1992, so it is 33 years old, younger than the Missouri average of 45.1 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 46 ft (14 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries605 TH Road
CrossesJacks Branch
LocationS 1 T 62 N R 30 W
RouteCounty Highway 204
CountyGentry County
StateMissouri
Coordinates40.20468, -94.23532
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 605 TH Road over Jacks Branch built?

It was built in 1992, making it 33 years old in 2025.

What condition is 605 TH Road over Jacks 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 January 2023.

How much traffic does 605 TH Road over Jacks Branch carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 605 TH Road over Jacks Branch?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 16 ft wide.

Who owns 605 TH Road over Jacks Branch?

It is owned by the County Highway Agency.