US Bridges

Loc 155th ST over Small Stream

Fair

Delaware County, Iowa · 090063605 · Structure no. 000000000142881

Built
1982
43 years old
Condition
Fair
inspected December 2022
Type
Tee Beam
Prestressed Concrete
Length
52 ft
2 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

Loc 155th ST over Small Stream is a prestressed concrete tee beam carrying Loc 155th ST over Small Stream in Delaware County, Iowa. It was built in 1982, so it is 43 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 49 vehicles a day, projected to reach 49 by 2043. The structure is 52 ft (15.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLoc 155th ST
CrossesSmall Stream
Location090063605
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.56376, -91.50701
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Loc 155th ST over Small Stream built?

It was built in 1982, making it 43 years old in 2025.

What condition is Loc 155th ST 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 December 2022.

How much traffic does Loc 155th ST over Small Stream carry?

About 49 vehicles per day (2022 count).

How long is Loc 155th ST over Small Stream?

The structure is 52 ft (15.9 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns Loc 155th ST over Small Stream?

It is owned by the County Highway Agency.