US Bridges

Harrison RD over Straight Fk Moreau

Good

Morgan County, Missouri · S 7 T 43 N R 17 W · Structure no. 34856

Built
2014
11 years old
Condition
Good
inspected November 2024
Type
Channel Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

Harrison RD over Straight Fk Moreau is a concrete channel beam carrying Harrison RD over Straight Fk Moreau in Morgan County, Missouri. It was built in 2014, so it is 11 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 450 by 2043. The structure is 120 ft (36.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHarrison RD
CrossesStraight Fk Moreau
LocationS 7 T 43 N R 17 W
RouteCounty Highway 239
CountyMorgan County
StateMissouri
Coordinates38.50131, -92.84328
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic450 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrison RD over Straight Fk Moreau built?

It was built in 2014, making it 11 years old in 2025.

What condition is Harrison RD over Straight Fk Moreau 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 November 2024.

How much traffic does Harrison RD over Straight Fk Moreau carry?

About 250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Harrison RD over Straight Fk Moreau?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns Harrison RD over Straight Fk Moreau?

It is owned by the County Highway Agency.