US Bridges

US 30 EB over Deer Creek

Good

Tama County, Iowa · 0.6 Mi. W of Jct. US 63 · Structure no. 000000000608485

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
203 ft
3 main spans
Daily traffic
3,700
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 EB over Deer Creek is a prestressed concrete stringer/multi-beam or girder carrying US 30 EB over Deer Creek in Tama County, Iowa. It was built in 2010, so it is 15 years old, younger than the Iowa average of 45.5 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 3,700 vehicles a day, roughly 16% of them trucks, projected to reach 3,700 by 2044. The structure is 203 ft (62 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 30 EB
CrossesDeer Creek
Location0.6 Mi. W of Jct. US 63
RouteU.S. Route 30
StateIowa
Coordinates41.98383, -92.59494
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating47.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length203 ft (62 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2022)
Projected traffic3,700 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 30 EB over Deer Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 30 EB over Deer Creek 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 October 2024.

How much traffic does US 30 EB over Deer Creek carry?

About 3,700 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US 30 EB over Deer Creek?

The structure is 203 ft (62 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns US 30 EB over Deer Creek?

It is owned by the State Highway Agency.