US Bridges

Bluff Road over Small Stream

Fair

Fremont County, Iowa · 070431108 · Structure no. 000000000161531

Built
1986
39 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
139
2022 count
Owner
County
County Highway Agency

About this bridge

Bluff Road over Small Stream is a prestressed concrete tee beam carrying Bluff Road over Small Stream in Fremont County, Iowa. It was built in 1986, so it is 39 years old, younger than the Iowa average of 45.5 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 139 vehicles a day, roughly 24% of them trucks, projected to reach 139 by 2043. The structure is 24 ft (7.3 m) long and 25 ft wide.

CarriesBluff Road
CrossesSmall Stream
Location070431108
RouteCounty Highway 0
StateIowa
Coordinates40.87496, -95.7552
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic139 (2022)
Projected traffic139 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Bluff Road over Small Stream built?

It was built in 1986, making it 39 years old in 2025.

What condition is Bluff Road over Small Stream 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 April 2023.

How much traffic does Bluff Road over Small Stream carry?

About 139 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Bluff Road over Small Stream?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns Bluff Road over Small Stream?

It is owned by the County Highway Agency.