US Bridges

Ia 3 over Boylan Creek

Fair

Butler County, Iowa · 2.4 Mi. E of Jct. SR T16 · Structure no. 000000000016510

Built
1927
98 years old, rebuilt 1984
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
127 ft
3 main spans
Daily traffic
1,080
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 3 over Boylan Creek is a steel stringer/multi-beam or girder carrying Ia 3 over Boylan Creek in Butler County, Iowa. It was built in 1927 and reconstructed in 1984, so it is 98 years old, older 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 5 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 1,080 vehicles a day, roughly 18% of them trucks, projected to reach 1,080 by 2044. The structure is 127 ft (38.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIa 3
CrossesBoylan Creek
Location2.4 Mi. E of Jct. SR T16
RouteState Highway 3
CountyButler County
StateIowa
Coordinates42.74481, -92.91992
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 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 rating56 US tons
Inventory rating33.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length127 ft (38.7 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,080 (2022)
Projected traffic1,080 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 3 over Boylan Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1984.

What condition is Ia 3 over Boylan Creek 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 May 2024.

How much traffic does Ia 3 over Boylan Creek carry?

About 1,080 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Ia 3 over Boylan Creek?

The structure is 127 ft (38.7 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns Ia 3 over Boylan Creek?

It is owned by the State Highway Agency.