US Bridges

Se. Hillyard RD over Br of Riley Br

Fair

Buchanan County, Missouri · S 2 T 56 N R 34 W · Structure no. 16725

Built
1991
34 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Se. Hillyard RD over Br of Riley Br is a steel stringer/multi-beam or girder carrying Se. Hillyard RD over Br of Riley Br in Buchanan County, Missouri. It was built in 1991, so it is 34 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 23 by 2044. The structure is 51 ft (15.5 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSe. Hillyard RD
CrossesBr of Riley Br
LocationS 2 T 56 N R 34 W
RouteCounty Highway 130
CountyBuchanan County
StateMissouri
Coordinates39.69637, -94.68281
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 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 Se. Hillyard RD over Br of Riley Br built?

It was built in 1991, making it 34 years old in 2025.

What condition is Se. Hillyard RD over Br of Riley Br 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 Se. Hillyard RD over Br of Riley Br carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Se. Hillyard RD over Br of Riley Br?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns Se. Hillyard RD over Br of Riley Br?

It is owned by the County Highway Agency.