US Bridges

Unicorn RD over Huffman Br

Good

Newton County, Missouri · S 31 T 25 N R 30 W · Structure no. 30226

Built
2003
22 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Unicorn RD over Huffman Br is a steel stringer/multi-beam or girder carrying Unicorn RD over Huffman Br in Newton County, Missouri. It was built in 2003, so it is 22 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 62 by 2044. The structure is 61 ft (18.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUnicorn RD
CrossesHuffman Br
LocationS 31 T 25 N R 30 W
RouteCounty Highway 0
Coordinates36.83919, -94.1387
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.
Superstructure8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.7 US tons
Inventory rating19.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span59 ft (18 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic62 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Unicorn RD over Huffman Br built?

It was built in 2003, making it 22 years old in 2025.

What condition is Unicorn RD over Huffman Br 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 Unicorn RD over Huffman Br carry?

About 40 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Unicorn RD over Huffman Br?

The structure is 61 ft (18.6 m) long with a longest span of 59 ft (18 m) and a deck 25 ft wide.

Who owns Unicorn RD over Huffman Br?

It is owned by the County Highway Agency.