US Bridges

Bus US 30 over Deer Creek

Good

Tama County, Iowa · 083152101 · Structure no. 000000000049491

Built
2023
2 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
3 main spans
Daily traffic
2,942
2023 count
Owner
County
County Highway Agency

About this bridge

Bus US 30 over Deer Creek is a prestressed concrete stringer/multi-beam or girder carrying Bus US 30 over Deer Creek in Tama County, Iowa. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,942 vehicles a day, roughly 7% of them trucks, projected to reach 2,942 by 2044. The structure is 217 ft (66.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBus US 30
CrossesDeer Creek
Location083152101
RouteCounty Highway 0
StateIowa
Coordinates41.99215, -92.59217
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length217 ft (66.1 m)
Longest span81 ft (24.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,942 (2023)
Projected traffic2,942 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bus US 30 over Deer Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Bus US 30 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 Bus US 30 over Deer Creek carry?

About 2,942 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Bus US 30 over Deer Creek?

The structure is 217 ft (66.1 m) long with a longest span of 81 ft (24.7 m) and a deck 43 ft wide.

Who owns Bus US 30 over Deer Creek?

It is owned by the County Highway Agency.