US Bridges

SB Ia 376 over UP BNSF Rr-Taft ST

Fair

Woodbury County, Iowa · 0.1 Mi. S of SR D12 · Structure no. 000000000053081

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
541 ft
7 main spans
Daily traffic
3,100
2022 count
Owner
State
State Highway Agency

About this bridge

SB Ia 376 over UP BNSF Rr-Taft ST is a steel continuous stringer/multi-beam or girder carrying SB Ia 376 over UP BNSF Rr-Taft ST in Woodbury County, Iowa. It was built in 1974, so it is 51 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 3,100 vehicles a day, roughly 10% of them trucks, projected to reach 3,100 by 2044. The structure is 541 ft (164.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB Ia 376
CrossesUP BNSF Rr-Taft ST
Location0.1 Mi. S of SR D12
RouteState Highway 376
CountyWoodbury County
StateIowa
Coordinates42.54709, -96.35029
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74.7 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length541 ft (164.9 m)
Longest span96 ft (29.3 m)
Deck width47 ft (14.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2022)
Projected traffic3,100 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SB Ia 376 over UP BNSF Rr-Taft ST built?

It was built in 1974, making it 51 years old in 2025.

What condition is SB Ia 376 over UP BNSF Rr-Taft ST 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 SB Ia 376 over UP BNSF Rr-Taft ST carry?

About 3,100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SB Ia 376 over UP BNSF Rr-Taft ST?

The structure is 541 ft (164.9 m) long with a longest span of 96 ft (29.3 m) and a deck 47 ft wide.

Who owns SB Ia 376 over UP BNSF Rr-Taft ST?

It is owned by the State Highway Agency.