US Bridges

Halley RD over Trib of Sandy CR

Good

Mercer County, Missouri · S 20 T 64 N R 25 W · Structure no. 29100

Built
2001
24 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

Halley RD over Trib of Sandy CR is a steel stringer/multi-beam or girder carrying Halley RD over Trib of Sandy CR in Mercer County, Missouri. It was built in 2001, so it is 24 years old, younger than the Missouri average of 45.1 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2044. The structure is 60 ft (18.3 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesHalley RD
CrossesTrib of Sandy CR
LocationS 20 T 64 N R 25 W
RouteCounty Highway 200
Coordinates40.32325, -93.73544
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic28 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Halley RD over Trib of Sandy CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is Halley RD over Trib of Sandy CR 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 January 2024.

How much traffic does Halley RD over Trib of Sandy CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Halley RD over Trib of Sandy CR?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 20 ft wide.

Who owns Halley RD over Trib of Sandy CR?

It is owned by the County Highway Agency.